Programming related questions

Do NOT use for questions about .NET Core - use [.net-core] instead. The .NET framework is a software framework designed mainly for the Microsoft Windows operating system. It includes an implementation of the Base Class Library, Common Language Runtime (commonly referred to as CLR), Common Type System (commonly referred to as CTS) and Dynamic Language Runtime. It supports many programming languages, including C#, VB.NET, F# and C++/CLI..

• How to handle broken connection during active HTTP client operation?
• Can't get values ​entered in ASP.NET MVC Form
• Under IIS installation features, what is the difference between .net framework 4.7 and asp.net 4.7
• ForEach loop but using a generic list as a parameter
• I am trying to loop through my data in text file and append it to list view

AJAX (Asynchronous JavaScript and XML) is a technique for creating interactive website user interfaces without the traditional web page refresh or reload. It uses asynchronous data exchange between client and server to update displayed information and respond to user interactions seamlessly. Include additional tags for programming languages, libraries, frameworks, web browser, protocols and other environmental information..

• I can't get PUT data in PHP from jQuery Ajax request
• Fire radio button change action after dynamically created on ajax
• How can I set an ajax variable equal to a php variable?
• How can I append json data from ajax response to more than one class
• Accessing PHP array value in jQuery.ajax is not working

An algorithm is a sequence of well-defined steps that defines an abstract solution to a problem. Use this tag when your issue is related to algorithm design..

• Check if array is sorted using O(1)
• What is the fastest way to reverse a byte array in c#?
• What is the fastest way to reverse a byte array in c#?
• how to get result of swap after the method ends in java?
• How to sort items on entry in Java

Android is Google's mobile operating system, used for programming or developing digital devices (Smartphones, Tablets, Automobiles, TVs, Wear, Glass, IoT). For topics related to Android, use Android-specific tags such as android-intent, android-activity, android-adapter, etc. For questions other than development or programming, but related to the Android framework, use this link: https://android.stackexchange.com..

• Expected methods do not exists MutableStateFlow<List<T>>() for manipulation
• Firebase Authentication failing to create a user in Kotlin
• Android - Kotlin Handler cancel postDelayed task
• How to build a search filter that validates even partially incorrect values?
• How to fix java.lang.NumberFormatException: For input string: ".52"

Questions about Angular (not to be confused with AngularJS), the web framework from Google. Use this tag for Angular questions which are not specific to an individual version. For the older AngularJS (1.x) web framework, use the AngularJS tag..

• Angular input's ngModel and Value don't work together
• Why is parseInt displaying Nan? - Angular
• Error returning an array of objects from an Angular function
• Nativescript Angular project Build failed
• Send image from ASP.NET Web API to Angular client

DO NOT USE. Use specific tags like [google-cloud-platform], [facebook], [amazon-web-services] instead or [api-design] where applicable. Questions asking to recommend or find an API are off-topic..

• PHP API main file
• How to reorder an API call to a custom order by API ID?
• HttpClient post produces wrong headers and no body
• return json value through fetch function
• return json value through fetch function

A simple collection data type found in some languages / platforms (such as in Java or .NET). The array list implements a list using an array, benefiting from both the DSs strengths..

• Trying to make an "Unlimited" Array List of names and ages, and print it into the Console
• Decrease the number of calls
• How to sort the following ArrayList
• uncheck (removing) last item in checkbox and check(adding) other at the same time , keeps the unchecked value and adds other checked value
• Need help searching through nested lists C#

An array is an ordered linear data structure consisting of a collection of elements (values, variables, or references), each identified by one or more indexes. When asking about specific variants of arrays, use these related tags instead: [vector], [arraylist], [matrix]. When using this tag, in a question that is specific to a programming language, tag the question with the programming language being used..

• Get xml Attributes to arrays c# Windows form
• array_filter for string contained inside associative array
• concatenate array to array with specific positions JavaScript
• How can I create a formula that reads the hierarchy number structure and add the parent code for the child in Google Sheet?
• Concatenation of np arrays

ASP.NET is a Microsoft web application development framework that allows programmers to build dynamic web sites, web applications and web services. It is useful to use this tag in conjunction with the project type tag e.g. [asp.net-mvc], [asp.net-webforms], or [asp.net-web-api]. Do NOT use this tag for questions about ASP.NET Core - use [asp.net-core] instead..

• Map List of one Type to a list of another similar Type
• How do I reduce duplication by moving method to base class?
• ASP.NET JavaScript Always Shows Default Alert Message
• Data return null from view to controller in ASP.NET Core
• Button not firing the third time - ASP.NET code behind C#

Asynchronous programming is a strategy for deferring operations with high latency or low priority, usually in an attempt to improve performance, responsiveness, and / or composability of software. Such strategies are usually employed using some combination of event-driven programming and callbacks, and optionally making use of concurrency through coroutines and / or threads..

• Convert Action<T, T, T> to Task<T, T, T>?
• How to wait result of a function in React?
• Pushing to array in asynchonous map
• Why use async/await, it makes code work like sync
• What's the difference between CancellationTokenSource constructor delay parameter and CancelAfter Method

Authentication is the process of providing a proof of identity or verifying identity..

• Authorization issues in asp page VB.NET
• Symfony 5.4 SecurityBundle, cant login after register
• Laravel - API login authentication check
• Redirecting to specific post / URL after Login
• Blazor Server side, ExternalRegister buttons at .razor page

Axios is a Promise-based HTTP client for JavaScript which can be used in your front-end application and in your Node.js backend..

• React front end is not communicating with spring boot REST API. Axios network err in console
• Failed to load resource: the server responded with a status of 404 (Not Found) when editing form React Node MySQL
• Failed to load resource: the server responded with a status of 404 (Not Found) when editing form React Node MySQL
• Express.js: undefined request.body
• How to set initial state with most up to date data returned from API?

Microsoft Azure is a Platform as a Service and Infrastructure as a Service cloud computing platform. Use this tag for programming questions concerning Azure. General server help can be obtained at Super User or Server Fault..

• appsettings.json read properly when deployed as Azure Function App Container, but not when deployed as simply Azure Function App
• How to upload append blob to azure without getting size limit exception?
• node.js console app code to manage Azure Cosmos db tutorial code throwing error as undefined
• SIgn-in error in .NET 6 web application using Microsoft Identity (aka: Azure Active Directory)
• ASP .NET Core Blazor Server Microsoft Identity remotely user logout

Beautiful Soup is a Python package for parsing HTML/XML. The latest version of this package is version 4, imported as bs4..

• Grab specific element in HTML using Python : BeautifulSoup4
• How can I split the price to get one price
• How can I split the price to get one price
• How to add new HTML tag without ending statement in Python utilizing BS4
• FindAll returns AttributeError: ResultSet object has no attribute 'findAll'

Blazor lets you build interactive web UIs using C# instead of JavaScript. It is a feature of ASP.NET, the web development framework from Microsoft that extends the .NET developer platform..

• Blazor: What does the first character ☱ ☲ ☴ mean in the title?
• Using JS in Blazor
• How to do a health check on a POST url in ASP.NET/blazor
• How to add a custom event to a blazor component?
• Q: What is the best way to store api keys in a Blazor WASM application?

Buttons are simple elements in graphical user interfaces that take mouse clicks or finger taps (on touch devices) as input..

• bootstraps 'active' buttons not working properly
• on change for a button to present a list?
• Button btn1_click is not executing
• Button btn1_click is not executing
• Enable button if checkbox is selected in Kotlin?

A unit of information usually corresponding to 8 bits. This term is also most often used to indicate the smallest addressable unit of storage on a digital system..

• What is the fastest way to reverse a byte array in c#?
• What is the fastest way to reverse a byte array in c#?
• C++ convertStringToByteArray to Delphi convertStringToByteArray
• Convert RGB values to binary to decimal
• How can I convert file size human-readable format into byte size in Java?

C is a general-purpose programming language used for system programming (OS and embedded), libraries, games and cross-platform. This tag should be used with general questions concerning the C language, as defined in the ISO 9899 standard (the latest version, 9899:2018, unless otherwise specified — also tag version-specific requests with c89, c99, c11, etc). C is distinct from C++ and it should not be combined with the C++ tag absent a rational reason..

• Cannot parse flag with argument in argp.h
• Counting how many dozen in a number and also count its extra amount?
• C. decide if string is a palindrome using 3 functions
• Calling a C file in C++ is giving errors
• How to separate format specifiers from characters with printf

C# (pronounced "see sharp") is a high level, statically typed, multi-paradigm programming language developed by Microsoft. C# code usually targets Microsoft's .NET family of tools and run-times, which include .NET, .NET Framework and Xamarin among others. Use this tag for questions about code written in C# or about C#'s formal specification. .

• Parser errors not shown in asp.net
• Get xml Attributes to arrays c# Windows form
• Compare string to array
• Map List of one Type to a list of another similar Type
• Converting a binary string to BigInteger

C++ is a general-purpose programming language. It was originally designed as an extension to C and has a similar syntax, but it is now a completely different language. Use this tag for questions about code (to be) compiled with a C++ compiler. Use a version-specific tag for questions related to a specific standard revision [C++11], [C++14], [C++17], [C++20] or [C++23], etc..

• Using iterators but with same amount of loc?
• Why is GCC giving me a use of uninitialized value warning?
• There is no byte type in c. But I found byte type in programming
• How to create a common range?
• Calling a C file in C++ is giving errors

C++17 is the name of the C++ standard approved in 2017. It builds upon the previous C++14 standard, improving the core language and standard library, and adding a few new language features..

• Datetime parse and format in C++
• Taking the address of a returned temporary object
• How to iterate over a map and match its key values with enum class members?
• How to unpack only part of a parameter pack when declaring a variable?
• Linker can't resolve external symbols

C++20 is the version of C++ after C++17. This tag should be used (along with the [C++] tag) for questions about C++ features specific to C++20..

• Implementing specific template instances in source with inherited template parameters
• Removing last trailing comma from the arguments of a macro
• Recursive concept/type_traits on tuple-like types
• Datetime parse and format in C++
• Is it possible to create a `map_error` function that takes a lambda?

char typically refers to a character data-type, representing letters of text..

• why only the index 0 changes him value to ""
• why only the index 0 changes him value to ""
• how to convert long to char in C?
• Why do `(char)~0` and `(unsigned char)~0` return values of different widths?
• Passing int to sysfs

A template for creating new objects that describes the common state(s) and behavior(s). NOT TO BE CONFUSED WITH CSS CLASSES. Use [css] instead..

• Why do I get this error in Clang? "constexpr if condition is not a constant expression"
• Implementing specific template instances in source with inherited template parameters
• How to call an instance of a class that makes an API call, and a function within that class that makes the request, and assign this to variable? Swift
• Class inheritance and importing -- python
• A small lottery game project and challenges I have. C #

CodeIgniter is an Application Development Framework - a toolkit - for people who build web sites using PHP. Created by EllisLab, fostered by BCIT it is now a project of the CodeIgniter Foundation. The framework implements a modified version of the Model-View-Controller design pattern. Use this tag for questions about CodeIgniter classes, methods, functions, syntax, and use. There are two major versions: 3.x and 4.x, addressing different system requirements.

• Manipulate php array of object with condition
• Problem connect to FTP other server whit hostname
• Writing a CSV File New Line Characters Showing as Text
• Insert value to database in CodeIgniter; I have array <input> tag
• sending mail to multiple email address in codeigniter php not working

A component in the Unified Modeling Language "represents a modular part of a system, that encapsulates its content and whose manifestation is replaceable within its environment. A component defines its behavior in terms of provided and required interfaces". The best example of component can be found in ActionScript- Flash,Flex sdks. There you have UI components like buttons, labels, DataGrids, charts those are reusable, distributable etc. .

• React component with re usable avatar
• React component with re usable avatar
• React component with re usable avatar
• How to pass `component` into tab panel when active?
• ComponentActivity can only be called from within the same library group prefix

Count refers to the number of objects in a collection. It's also a commonly-used SQL function that counts the number of rows..

• How to use COUNT () OVER(Partition) along with where clause
• Count users with a condition in MYSQL
• Count records for each day between the startdate and enddate in sequelize ORM (Performing this query in nodejs)
• Displaying SQL Query in HTML table (php)
• Frequency counts with a "multiple selection" variable

CSS (Cascading Style Sheets) is a representation style sheet language used for describing the look and formatting of HTML (HyperText Markup Language), XML (Extensible Markup Language) documents and SVG elements including (but not limited to) colors, layout, fonts, and animations. It also describes how elements should be rendered on screen, on paper, in speech, or on other media..

• container-type: inline-size breaks the button width
• how to get class in javascript with colon syntax for making dynamic class like tailwind css
• Change styles in all Divs on Scroll Event | Angular
• How to convert unit into rem dynamically in css
• Why is the row height different when using grid-template-areas with 2 rows vs 4?

Comma-Separated Values or Character-Separated Values (CSV) is a standard "flat file database" (or spreadsheet-style) format for storing tabular data in plain text, with fields separated by a special character (comma, tab, etc). Rows are typically denoted by newline characters. Use for any delimited file formats, including tab delimited (TSV).

• SOLVED - read .csv file into 2D-array
• CSV to JSON in JAVA (org.json) Headers to keys not working
• In Python, I would like to read a huge CSV file stored in a zip file, but only a fixed sized chunk at a time
• Join two csv files in R
• AttributeError: 'NavigableString' object has no attribute 'keys' in Python

Dart is a class-based, statically(& strongly)-typed programming language for building web and mobile applications. Dart compiles to modern JavaScript to run in the browser and compiles to native code to run on mobile platforms like Android and iOS. Dart also runs on the command-line for scripting and server-side apps..

• Flutter Programmable Timer
• Socket IO flutter not connecting
• How to Read JSON file in Dart console app?
• Why setState does not update my UI even it changes?
• Flutter how to migrate this BLoC old version code to Bloc new version

A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects. The data are typically organized to model aspects of reality in a way that supports processes requiring information. Use this tag if you have questions about designing a database. If it is about a particular database management system, (e.g., MySQL), please use that tag instead..

• How to export Room Database to .CSV
• How to Query in a many to many relationship Room database?
• Create url in ASP. NET MVC Entity Framework
• How to delete a data in database table
• Suggested way to resolve column name/type in a view

A data frame is a 2D tabular data structure. Usually, it contains data where rows are observations and columns are variables and are allowed to be of different types (as distinct from an array or matrix). While "data frame" or "dataframe" is the term used for this concept in several languages (R, Apache Spark, deedle, Maple, the pandas library in Python and the DataFrames library in Julia), "table" is the term used in MATLAB and SQL. .

• Make dummy variables for a categorial variable
• Pandas split list upon DataFrame creation
• Pandas - Create new rows and cols based on dict of a column
• scale a df but it's not numeric?
• Compute standard deviation on parts of a data frame

The term "datatable" is ambiguous. In .NET, it's a class that represents a table of in-memory data. In component based MVC frameworks like JSF and Wicket, it's an UI component that dynamically renders a HTML table based on a collection. For jQuery DataTables plugin, please use the [datatables] tag, for the data.table R package please use [data.table]. For the Python datatable package, use [py-datatable]..

• How to delete a data in database table
• Troubles when fetching data from table with a query with a parameter
• Generate random date after a date
• Copy LINQ query results into existing DataTable with faster performance
• How to add html tag in each array elements in php?

DataTables is a plug-in for the jQuery JavaScript library. It is a highly flexible tool, based upon the foundations of progressive enhancement, which will add advanced interaction controls to any HTML table. Do not use this together with [datatable]..

• DataTables date range filter, not getting the first date
• How to use if statement in query model
• How to use if statement in query model
• How to use if statement in query model
• DataTables Requested unknown parameter 'PageId'

A date is a reference to a particular day represented within a calendar system, and consists of year, month and day. Use for questions about creating, manipulating and storing date information. Use with any relevant language tags..

• Sort sheet according to birthday date without considering the year of a date
• What date format is this date "2021-08-03T04:10:07.502-0700"?
• How to specify time after daylight saveing time shift in Java
• How to convert date time in varchar to date in oracle to get one month data
• Column with array with all months in x amount of years from starting date - Pyspark

A DateTime object in many programming languages describes a date and a time of day. It can express either an instant in time or a position on a calendar, depending on the context in which it is used and the specific implementation. This tag can be used for all date and time related issues..

• Datetime parse and format in C++
• What date format is this date "2021-08-03T04:10:07.502-0700"?
• How to specify time after daylight saveing time shift in Java
• Count records for each day between the startdate and enddate in sequelize ORM (Performing this query in nodejs)
• Pythonic way to get all dates within time period

A dictionary maps keys to values allowing efficient retrieval of values by keys. USE [map-function] TAG for mapping functions; and for geography, [maps]. .

• Nodejs mapping through an API gives error: Cannot read properties of null
• How to access nested dict using @property
• Dictionary to Dataframe with keys as index
• Python - Error , iterating list of dictionaries
• How would you convert the following dictionary to a specific JSON structure?

discord.js is a Node.js module that allows the developer to interact with the Discord API. Use this tag for questions about the usage of discord.js, not for questions regarding the Discord API or Discord in general (for API questions, use the 'discord' tag). Consider also using the 'javascript' and the 'node.js' tags..

• MySQL with Typescript doesn't store multiple data - discord.js
• How to use discord.js in HTML
• Discord JS: Shutdown bot via slash command
• Discord Api Valid intents must be provided for the Client but the code dosent work
• Discord.js v13 How to check in which vc someone is?

Django is an open-source server-side web application framework written in Python. It is designed to reduce the effort required to create complex data-driven websites and web applications, with a special focus on less code, no-redundancy and being more explicit than implicit..

• Can't create links to any Django admin templates beside index.html?
• Django date field derived from timestamp field
• django pwa error = cannot import name 'url' from 'django.conf.urls
• NoReverseMatch Reverse for 'save-post' with arguments '('',)' not found. 1 pattern(s) tried: ['save/(?P<pk>[0-9]+)$']
• NoReverseMatch Reverse for 'save-post' with arguments '('',)' not found. 1 pattern(s) tried: ['save/(?P<pk>[0-9]+)$']

Docker is a tool to build and run containers. Questions concerning Dockerfiles, Docker Compose, and architecture are accepted, but Stack Overflow questions must be programming-related. Questions about running Docker in production may find better responses on Server Fault (https://serverfault.com). .

• getting a local docker-composed node / express & react app deployed on GCP using a single Dockerfile
• Gitlab-ci running mysql docker and connect it with error ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost' (111)
• How to Pull Docker Environment Variables from launchSettings.json in C#
• Dockerfile specifying path of API
• ASP.NET Core on docker returns ERR_EMPTY_RESPONSE when browsing at localhost

The Document Object Model(DOM) is a way to programmatically refer to the elements of a markup language like XML and HTML. Use with [javascript] or any other programming language that has a DOM parser .

• Is 'window.screenX' value is equal to $canvas.getBoundingClientRect().left?
• DOM ul element, how to create it?
• Selection in contentEditable <div> collapses as soon as I click a button
• Target container is not a DOM element, already have div id in the body
• Target container is not a DOM element, already have div id in the body

Use this tag for questions relating to functions from the dplyr package, such as group_by, summarize, filter, and select. .

• How do I reshape my data so that rows are columns in R?
• Using pipe (%>%) based on function parameter?
• creating a column function with custom parameters
• Row_wise and column_wise fill NA's using fill and down/across
• From long to wide

Express.js is a minimal and flexible Node.js web application framework providing a robust set of features for building web applications..

• Trying to post a table of products with Websocket and Express server
• Can you add apps made from (js, nodejs, express and mongodb) in a wordpress website?
• Pushing to array in asynchonous map
• How to Configure Server API to Receive a Request Body Using Fetch and Express JS?
• How to use this in backend (Node Js)

A block of arbitrary information, or resource for storing information, accessible by the string-based name or path. Files are available to computer programs and are usually based on some kind of persistent storage..

• Memory conscious way of adding bytes to the beginning of a file
• Cannot understand why fprintf() doesn't work here
• File read code caught in loop? Can't figure out the error <code below>
• How can I convert file size human-readable format into byte size in Java?
• Python code opening json file - more optimal

A program or routine that rejects or accepts data that meets a given criterion. An example would be a "high-pass filter" that removed entries less than a given limit from a set of values. Do NOT use this tag for: Java servlet filters. Use [servlet-filters] instead. For Bloom filters, use [bloom-filter] instead. For CSS filters use [css-filters]..

• filtering through array of strings doesn't include the first character
• How to select the cell with the highest value based on 2 cells
• R, find pattern and create index, then filter another column based on the created index
• Compare and Delete list objects based on key (float values)
• nodejs filtering an array of objects where the filtering is partially done in an async function

Firebase is a serverless platform for unified development of applications for mobile devices and for the web..

• Bad request returned from google cloud function
• Why my Firebase firestore data is not showing in android
• Why is my button not working in andriod kotlin *There is no error*
• How to check if user email is verified in firebase, even though I don't have a literal User Object
• Trying to get IDS of all documents in firebase, android

CSS module for flexible layouts providing a broad range of options for aligning elements while eliminating the need for floats and tables..

• Sticking footer to bottom of page using flexbox and margin-top: auto; not working
• Four Column Layout Not Resizing to Screen Size
• CSS grid with auto-sized auto-filled rows
• Having troubles wrapping text to align with image using only flex
• Sticky column issue with css grid

Flutter is an open-source UI software development kit / framework created by Google. Flutter apps are written in the Dart language. It is used to develop cross platform applications for Android, iOS, Linux, Mac, Windows, Google Fuchsia, and the web from a single codebase. Flutter was released in May 2017. Largest open-source platform built using UI elements..

• flutter can't run project on android device
• Flutter Programmable Timer
• Multiple cards inside a list widget in flutter
• Socket IO flutter not connecting
• Flutter button to display image above it

foreach is a looping construct that executes a given piece of code for each element in a list/collection/array. In contrast to a for loop, the foreach loop doesn't require the coder to maintain a counter variable to avoid off-by-one (fencepost) bugs. It is recommended to use when simple iteration over whole array/list/collection is needed..

• Loop until find an array empty in Javascript
• How to exclude items in foreach loop
• A small lottery game project and challenges I have. C #
• A small lottery game project and challenges I have. C #
• Powershell process single array in foreach loop versus multi aray in foreach loop

A form is essentially a container that can be used to hold any amount of any subset of several types of data. HTML forms are used to pass data to a server. VB and C# forms are the windows used to interact with the user..

• How to apply a CSS file in the Google Apps Script project to an HTML file returned by doPost()?
• How to apply a CSS file in the Google Apps Script project to an HTML file returned by doPost()?
• CSS/HTML - Input boxes are not aligned by a few pixels for a form
• CSS/HTML - Input boxes are not aligned by a few pixels for a form
• HTML .value checking not working properly

A function (also called a procedure, method, subroutine, or routine or macro) is a portion of code intended to carry out a single, specific task. Use this tag for questions which specifically involve creating or calling functions. For help implementing a function to perform a task, use [algorithm] or a task-specific tag instead. By creating function the logic can be isolated and can be called repeatedly..

• Cannot read properties of undefined (reading 'object') using formik
• creating a column function with custom parameters
• How to call an instance of a class that makes an API call, and a function within that class that makes the request, and assign this to variable? Swift
• Who do these two C programs with a recursive function and static variable have different outputs?
• Recursive program to find the value of x when xˣ = N

GCC is the GNU Compiler Collection. It's the de facto standard compiler for C, C++, Go, Fortran, and Ada on Linux and supports many other languages and platforms as well..

• C: how stack array with variable size works and result is correct? What happened in memory?
• Shared object creation: dangling symlink using make
• Why does clang make the Quake fast inverse square root code 10x faster than with GCC? (with *(long*)float type punning)
• Why does gcc -march=znver1 restrict uint64_t vectorization?
• Text appearing before command prompt

Generics are a form of parametric polymorphism found in a range of languages, including .NET languages, Java, Swift, and Rust. .

• How to create an EnumSet of a collection of unspecified objects
• Why does the Java PriorityQueue implementation use Comparator<? super E> and not simply Comparator<E>
• How to extract MethodInfo.Invoke parameters from an object maybe implementing IEnumerable<T>
• Kotlin inflate generic viewbinding class in parent
• Dependency injection for generic interface with some parameters

ggplot2 is an actively maintained open-source chart-drawing package for R, written by Hadley Wickham, based upon the principles of "Grammar of Graphics". It partially replaces R's basic plot and the lattice package, while providing a clean, powerful, orthogonal and fun API..

• How to change items in a ggplot2 legend?
• HeatMap using ggplot R
• Reordering bars in combined dodged and stacked graph
• How to keep default axis labels but add an additional label in ggplot2
• geom_line group by year in R

Gradle is a project build automation tool that uses a Groovy DSL. Gradle build scripts support Maven and Ivy repositories as well as plain file system for dependency management..

• Nativescript Angular project Build failed
• Gradle: what are Dependencies?
• Why is code introduced in API 29 working on an emulator running API 26?
• How to set environment variables so they work in non-interactive bash shells?
• Use zipTree as source set for building and static compiling

A Gridview is a control for displaying and manipulating data from a variety of data sources..

• How to delete a data in database table
• 2 DropDownLists on each row of Gridview
• Change cell colour on all cells with 1
• How to verify all button in approved in gridview while click on other button that is outside the gridview
• How to implement custom paging in gridview in ASP.NET using C# with data modified in code-behind

Hibernate is an object-relational mapping (ORM) library for the Java language enabling developers to utilize POJO-style domain models in their applications in ways extending well beyond Object/Relational Mapping..

• Convert timestamp to date ColdFusion HQL SQL Server
• Create custom finder with spring
• Spring boot: How to Save data to specific DTYPE
• Empty List obtained in the Controller function for a POST request SpringBoot HIbernate
• Specify NULLS LAST in @OrderBy of @OneToMany mapped Collection

HTML (HyperText Markup Language) is the markup language for creating web pages and other information to be displayed in a web browser. Questions regarding HTML should include a minimal reproducible example and some idea of what you're trying to achieve. This tag is rarely used alone and is often paired with [CSS] and [JavaScript]..

• Unable to change button text on click toggle JQUERY
• container-type: inline-size breaks the button width
• Console is not showing some elements on document.getElementsByTagName("Button");
• how to get class in javascript with colon syntax for making dynamic class like tailwind css
• Change styles in all Divs on Scroll Event | Angular

Internet Information Services (IIS) is a web server created by Microsoft for use with Microsoft Windows. Please mention which version of IIS you're running either in your question or by adding a version specific tag..

• ASP.NET Core 6.0+: How to get the current (case-sensitive) IIS Website Name?
• ASP.NET Core 6.0+: How to get the current (case-sensitive) IIS Website Name?
• Getting "Illegal characters in path" popup error in IIS when trying to explore folders in IIS
• Automatic Windows Authentication over IIS, ASP.NET 5 and Microsoft SQL Server
• Server side injection on ASP.NET backend (IIS) by arbitrary file upload

The image tag is for questions related to the loading, formatting, saving, compression, and display of images in the context of source code. This tag should also be used for assistance using various image libraries. Questions about specific image formats should include the tags for those formats. Include tags to mention if the question relates to format conversion, processing, etc..

• Why is there a gap/border between picture elements when border, margin and padding are not specified?
• Scaling a portion of the background without changing background position
• Flutter button to display image above it
• html load background image lower quality
• PHP how to save qr code generated in api.qrserver.com/v1/create-qr-code

Indexing data structures is a general technique to improve the speed of data lookups..

• Converting an API output from a Python Dictionary to a Dataframe
• R, find pattern and create index, then filter another column based on the created index
• How to create composite foreign key in Mysql
• How to create composite foreign key in Mysql
• Referring to Elements in an Array in a For Loop in R - beginner

Inheritance is the system in object oriented programming that allows objects to support operations defined by anterior types without having to provide their own definition. It is the major vector for polymorphism in object-oriented programming..

• Process data after the kv file is loaded
• Check if type implements interface directly. Not from inheritance
• Implementing specific template instances in source with inherited template parameters
• How to prove that a Catch block for the Parent-exception will handle subclasses as well
• Java - Why can you declare an array of type parent class and instantiate as the subclass?

Input is usually related to user input, i.e., to the data that user supplies to a running application. In many systems this input is considered to be potentially dangerous and needs to be sanitized to ensure that the user has not injected runnable code into the application..

• Recursive program to find the value of x when xˣ = N
• How do I enter data from user input into a 2D array in Java?
• How do I enter data from user input into a 2D array in Java?
• File read code caught in loop? Can't figure out the error <code below>
• React editing input element that has a value

iOS is the mobile operating system running on the Apple iPhone, iPod touch, and iPad. Use this tag [ios] for questions related to programming on the iOS platform. Use the related tags [objective-c] and [swift] for issues specific to those programming languages..

• Swift - Tableview reloads only after second tap of the tab bar
• error response decoding and passing into alert
• How to decode a JSON array with no name?
• Firebase function not getting called inside a forEach loop with a DispatchGroup
• Swfit: Trouble running async functions in background threads (concurrency)

Java is a high-level object oriented programming language. Use this tag when you're having problems using or understanding the language itself. This tag is frequently used alongside other tags for libraries and/or frameworks used by Java developers..

• How can I create a JPanel larger than the size of the display
• I have blocked the URL for a user who is not logged in, but after the user logs in he still cannot access the URL
• I am trying to create a login window, and I need to match passwords to authenticate corresponding to that username, but it is showing sqlException err
• How to get sum using java streams?
• Mock consumers interface in subscribe method

For questions regarding programming in ECMAScript (JavaScript/JS) and its various dialects/implementations (excluding ActionScript). Note JavaScript is NOT the same as Java! Please include all relevant tags on your question; e.g., [node.js], [jquery], [json], [reactjs], [angular], [ember.js], [vue.js], [typescript], [svelte], etc..

• How do I upload an image to diskStorage?
• How to look for child elements in a collection
• How to sum the array values
• How to use / (slash), without using it as a path in React routing?
• how can i handle errors and continue function ? Javascript js

A JOIN is a general operation in relational algebra for a combining operation on two or more relations in a relational database system. JOIN is also keyword of the SQL language for performing this operation..

• R: Inferring a Common Merge Key
• GROUP BY statement throwing errors tutorial isn't
• Problem with creating a SQL view with multiple joins
• How to join dataframes with multiple IDs?
• Self join on column that may not have data

The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects/classes and a relational database. It is part of the EJB 3.0 specification and is the industry standard approach for Object to Relational Mapping (ORM). .

• Create custom finder with spring
• Spring boot: How to Save data to specific DTYPE
• Specify NULLS LAST in @OrderBy of @OneToMany mapped Collection
• Persisting BigDecimal[][] to MySQL database by using JPA/Hibernate
• How to use deleteById jpa repository if my id is a String?

jq is a sed-like tool for JSON data – you can use it to slice, filter, map, and transform structured data with the same ease that sed, awk, grep and friends lets you play with text..

• jq filter to strip out the double colons from a string in a json
• JQ string cannot be csv-formatted
• How do I group values to an array for the same field value in jq?
• JQ: combine arrays into single string
• JQ How to replace entire array with a variable arg

jQuery is a JavaScript library, consider also adding the JavaScript tag. jQuery is a popular cross-browser JavaScript library that facilitates Document Object Model (DOM) traversal, event handling, animations and AJAX interactions by minimizing the discrepancies across browsers. A question tagged jQuery should be related to jQuery, so jQuery should be used by the code in question and at least jQuery usage-related elements need to be in the question..

• jQuery dynamic input type change not working
• How to convert unit into rem dynamically in css
• How to get this.id on a for each function (Vanilla JS)
• Find the position of the element in the whole html document
• Table data in HTML does not separate well

JSON (JavaScript Object Notation) is a serializable data interchange format intended to be machine and human readable. Do not use this tag for native JavaScript objects or JavaScript object literals. Before you ask a question, validate your JSON using a JSON validator such as JSONLint (https://jsonlint.com)..

• Compare string to array
• How to plot multiple lines from data in a JSON file
• How to decode a JSON array with no name?
• SQL Searching Query inside JSON object array
• Table data in HTML does not separate well

Kotlin is a high-level programming language developed by JetBrains. Use this tag when you're having problems with the Kotlin language and standard library. This tag is often used alongside additional tags for the different targets (JVM, JavaScript, native, etc.) and libraries/frameworks (Android, Spring, etc.) used by Kotlin developers, if the question relates specifically to those topics..

• Expected methods do not exists MutableStateFlow<List<T>>() for manipulation
• Firebase Authentication failing to create a user in Kotlin
• Android - Kotlin Handler cancel postDelayed task
• How to build a search filter that validates even partially incorrect values?
• How to export Room Database to .CSV

The Laravel framework is an open-sourced PHP web framework that allows developers to create dynamic and scalable web applications. The source code of Laravel is hosted on GitHub and released under the MIT license..

• using different name of html input than the DB column name in Laravel
• To query from different tables and us it in json object
• Laravel form post data from placeholder value
• Laravel form post data from placeholder value
• Join columns of Day, Month , Year to calculate age

Language Integrated Query (LINQ) is a Microsoft .NET Framework component that adds native data querying capabilities to .NET languages. Please consider using more detailed tags when appropriate, for example [linq-to-sql], [linq-to-entities] / [entity-framework], or [plinq].

• How to return both comparator IEnumerables (true and false) using LINQ?
• asp.net linq group by id
• ASP.NET MVC - Select from two tables then compare
• Getting ToString method of an enum
• Left join and count based on multiple values using linq c#

NOTICE: All Linux questions must be related to programming; those that aren't will be closed. Use this tag only if your question relates to programming using Linux APIs or Linux-specific behavior, not just because you happen to run your code on Linux. If you need Linux support you can try https://unix.stackexchange.com or the specific Linux distribution's Stack Exchange site like https://askubuntu.com or https://elementaryos.stackexchange.com/.

• How do I pass the output of a c program which use curses/ncurses to another program?
• I am trying to create Linux users from PHP
• linux / bash parse through json-like data
• pass a linux command line into two executables
• How to set environment variables so they work in non-interactive bash shells?

The list tag may refer to: a linked list (an ordered set of nodes, each referencing its successor), or a form of dynamic array. Not to be used for HTML lists, use [html-lists] instead..

• Subsetting tibbles in a list based on values
• How can I delink an element from a c++ std::list without deallocating it?
• Deleting head node of a linked list in C where every node knows its headlist
• Get all elements of nested lists with recursion
• Python: searching way to remove duplicates from list of pandas dataframes?

Loops are a type of control flow structure in programming in which a series of statements may be executed repeatedly until some condition is met..

• Loop to check matches in several arrays
• struct and variable looping C language
• While loop not terminating even after the 'return'
• How to exclude items in foreach loop
• Remove previous iteration's data from re-used array

MariaDB is an open source database server that offers drop-in replacement functionality for MySQL. .

• How can I modify all values that match a condition inside a json array?
• How can I modify all values that match a condition inside a json array?
• How I can use Substring for Update in SQL right?
• How to use the NOT IN operator (<>) in a GROUP_CONCAT with dates?
• How to get the days within a range of two dates?

MongoDB is a scalable, high-performance, open source, document-oriented NoSQL database. It supports a large number of languages and application development platforms. Questions about server administration can be asked on https://dba.stackexchange.com..

• Mongo DB is not updated by id
• aggregate query in mongoose mongodb nodejs
• is there any way to put sum value of one input into another input in same form in reactjs and nodejs?
• Unable to fill mongodb document with external api data
• Referencing a schema, not a model

Mongoose is a MongoDB object modeling tool, or ODM (Object Document Mapper), written in JavaScript and designed to work in an asynchronous environment..

• aggregate query in mongoose mongodb nodejs
• Referencing a schema, not a model
• Mongoose.connect keeps coming back undefined
• How to get n documents for each unique id in mongoDB when queried using $in?
• Fetching last 30 days of Mongo records, summing by date, and filling in missing dates in range

For questions regarding multi-threading, the ability of a computer or a program to perform work concurrently or asynchronously by utilizing multiple concurrent streams of execution (generally referred to as threads)..

• c++ Thread handling in class
• Can std::future cause coredump without get or wait
• Thread 1: EXC_BAD_ACCESS (code=1, address=0x0) on vector insert
• Find prime numbers from a given range of numbers parallel program
• Apply synchronized on Class non static attribute

MySQL is a free, open source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL). DO NOT USE this tag for other DBs such as SQL Server, SQLite etc. Those are different DBs which all use their own dialects of SQL to manage the data..

• Generating a table of subtraction of two colum count
• I am trying to create a login window, and I need to match passwords to authenticate corresponding to that username, but it is showing sqlException err
• MySQL, many to many to many?
• NestJs + sequlize fetch contacted users
• I want to get multiple types as query parameters by using .split(',') in WHERE IN()

This tag relates to any of various nested entities or operations in programming..

• How to match duplicate values in nested arrays in JS
• Create nested json in postgresql
• Create nested json in postgresql
• Is nesting possible in javascript?
• Is nesting iterators inside each other expectable where for loops would break

Next.js is a minimalistic framework for server-rendered React applications as well as statically exported React apps..

• Error in parsing xml Response in react (nextjs)
• Why does my date variable reset in my map
• Why isn't .env.development working in my Next.js app?
• React JS update classes when useState is updated
• Missing "key" prop for element in iteratoreslintreact/jsx-key

Node.js is an event-based, non-blocking, asynchronous I/O runtime that uses Google's V8 JavaScript engine and libuv library. It is used for developing applications that make heavy use of the ability to run JavaScript both on the client, as well as on server side and therefore benefit from the re-usability of code and the lack of context switching..

• replacing the phone number with asterisks
• regex non-fixed-width lookaround
• How do I send a nested list/array through socket.emit()
• Dockerfile COPY package.json ./ works on local correctly but fails on gitlab pipeline
• what is Postman's port?

npm is the package manager shipped with Node.js. It can be used to install and publish CommonJS and ECMAScript modules, jQuery plugins, reusable JavaScript code (libraries), JavaScript-based CLI programs, and more..

• How to use this in backend (Node Js)
• How to use this in backend (Node Js)
• Updating my ReactJS website on Heroku failed
• When should I create my own module package instead of using other packages?
• How to handle duplicate packages from NPM package?

NumPy is an extension of the Python language that adds support to large multidimensional arrays and matrixes, along with a large library of high-level mathematical functions for operations with these arrays. .

• Apply a function of the indices to all elements of a numpy array
• Repeat 1d array into 2d numpy matrix
• how do I find the average of this array but only for the values that are not equal to zero in python
• Pad a numpym array to meet a required size
• TypeError: unsupported operand type(s) for *: '_Printer' and 'float'

An object is any entity that can be manipulated by commands in a programming language. An object can be a value, a variable, a function, or a complex data-structure. In object-oriented programming, an object refers to an instance of a class..

• Convert String to Object gives error due to double quotes at start and end
• How can I recreate an object in java?
• Javascript variable from for loop does not get called in push method
• What is causing this Point-to-Object Error in C?
• Why is my object being duplicated when I try to add it to an array?

Object-oriented programming is a programming paradigm using "objects": an encapsulation consisting of data fields and methods together with their interactions. .

• inheritance TypeError: __init__() takes from 1 to 2 positional arguments but 8 were given
• why One-To-Many association cannot be Bidirectional and it should just be Unidirectional?
• destructor's unexplained behavior while testing deep/shallow copy in C++
• how to get result of swap after the method ends in java?
• How to prove that a Catch block for the Parent-exception will handle subclasses as well

Oracle Database is a Multi-Model Database Management System created by Oracle Corporation. Do NOT use this tag for other products owned by Oracle, such as Java and MySQL..

• Why is the else condition triggered when the when condition is fulfilled?
• Need oracle query that merges two rows with user ids into one row with multiple user columns
• Oracle Function or Query to get data for all DB tables?
• Is the Function in the GROUP BY Clause Necessary?
• Group By Month between two dates

Pandas is a Python library for data manipulation and analysis, e.g. dataframes, multidimensional time series and cross-sectional datasets commonly found in statistics, experimental science results, econometrics, or finance. Pandas is one of the main data science libraries in Python..

• How to plot multiple lines from data in a JSON file
• Pandas split list upon DataFrame creation
• Read data from a dictionary in pandas and assign new column value
• Pandas - Create new rows and cols based on dict of a column
• Compute standard deviation on parts of a data frame

Parsing refers to breaking an artifact into its constituent elements and capturing the relationship between those elements. This tag isn't for questions about the self hosted Parse Platform (use the [parse-platform] tag) or parse errors in a particular programming language (use the appropriate language tag instead)..

• linux / bash parse through json-like data
• INSTALL_PARSE_FAILED_MANIFEST_MALFORMED error
• Regex - match an optionally repeated pattern of capture groups
• How to handle this JSON response into Swift Data Model
• How to handle this JSON response into Swift Data Model

For questions pertaining to the measurement or improvement of code and application efficiency..

• Python: Filling a dataframe sequentially based on matching ids (inefficient code)
• Mysql Select INNER JOIN with order by very slow
• Is getElementById or getElementsByClassName[0] faster?
• Copy LINQ query results into existing DataTable with faster performance
• MySql Select inside Select with Operator IN

PHP is a widely used, open source, general-purpose, multi-paradigm, dynamically typed and interpreted scripting language originally designed for server-side web development. Use this tag for questions about programming in the PHP language..

• array_filter for string contained inside associative array
• regex non-fixed-width lookaround
• How to add a class to all elements when displaying a post?
• Laravel - Using $this when not in object context
• How to get xls cell position in PHP

phpMyAdmin is an open-source, web-based MySQL administration tool written in PHP. Use this tag for problems related to using this tool and not for general query problems.

• Foreign key constraint not working in alter table statement SQL and phpmyadmin
• How to get average starting third previous record to be included to current row as column?
• How to get average starting third previous record to be included to current row as column?
• How to get the days within a range of two dates?
• I have question regarding SQL and phpmyadmin queries

Data type that "points to" another value stored in memory. A pointer variable contains a memory address of some other entity (variable or function or other entity). This tag should be used for questions involving the use of pointers, not references. The most common programming languages using pointers are C, C++, Go, and assembly languages. Use a specific language tag. Other helpful tags are method, function, struct, etc. describing the use of pointer..

• Deleting head node of a linked list in C where every node knows its headlist
• Why macros and functions work differently about same code in c
• In plain C, could we implement generic functions using pointers to char instead of pointers to void?
• What is causing this Point-to-Object Error in C?
• Member values not accessed in vector of instances of different subclasses

PostgreSQL is an open-source, relational database management system (RDBMS) available for all major platforms including Linux, UNIX, Windows and OS X. Mention your version of Postgres when asking questions. Consider dba.stackexchange.com for questions concerning administration or advanced features..

• Postgresql - Filter out data within a single query
• SQL Searching Query inside JSON object array
• How to copy the previous row value of the same column?
• XML file to PostgreSQL with <row> tag
• SQL: Apply an aggregate result per day using window functions

Promises are a tactic for deferred computing, suitable for several styles of concurrency: thread and event loop concurrency for local computation, and both synchronous and asynchronous remote messaging. A promise represents the eventual result of an asynchronous operation. The primary way of working with promises is through a method which registers transformations from the promise's eventual value or failure reason to a new promise..

• Extracting Promise Chain to an external function
• Why am I getting 'undefined' and empty array[] from a Promise.all call involving JavaScript async operations that use Azure APIs?
• Await function not working with jQuery event handler
• returning values from fs.readdir by using Promise in node js /javascript
• Javascript Promise Callback (when it is called)

Python is a multi-paradigm, dynamically typed, multi-purpose programming language. It is designed to be quick to learn, understand, and use, and enforces a clean and uniform syntax. Please note that Python 2 is officially out of support as of 2020-01-01. For version-specific Python questions, add the [python-2.7] or [python-3.x] tag. When using a Python variant (e.g. Jython, PyPy) or library (e.g. Pandas, NumPy), please include it in the tags..

• Create Boolean column with values opposite to another
• Function that returns a list of cars
• How to plot multiple lines from data in a JSON file
• How to generate a 2d array forming a chequerboard without numpy?
• Concatenation of np arrays

R is a free, open-source programming language & software environment for statistical computing, bioinformatics, visualization & general computing. Please use minimal reproducible example(s) others can run using copy & paste. Show desired output. Use dput() for data & specify all non-base packages with library(). Don't embed pictures for data or code, use indented code blocks instead. For statistics questions, use https://stats.stackexchange.com..

• Coding a multiple responses question using RSTUDIO
• Chi square tests for multiple columns in R
• lag/lead N time periods over a grouped variables
• Using the base R pipe to pipe ggplot2 to plotly
• How to turn text data into data frame in R?

This tag is for questions pertaining to random numbers and their generators, whether pseudo-random or truly random..

• MySql query to return a random row returns unexpected number of rows
• How to draw numbers with exceptions
• Why is the return type of std::rand() not an unsigned int?
• CS50 Caesar Cipher Bug
• Python - Cartesian product on lists with random variables in some of the list

Razor is a template language used by ASP.NET Web Pages, ASP.NET MVC (since version 3), and ASP.NET Core. It adds a layer of abstraction above HTML generation. It supports seamless transitions between HTML markup and C# or VB code. Transitions between markup and code are indicated by the "@" sign..

• Ability to Add row to ViewModel dynamically with ViewBag
• The model item passed into the ViewDataDictionary is of type '...', but this ViewDataDictionary instance requires a model item of type '...'
• Unable to cast object of type 'System.String' to type 'System.Int32' while using ToListAsync()
• Why razor executes a C# method inside a button click method on compilation without clicking the button?
• VS Code: How to enable .CSS intellisense for ASP.NET .cshtml files?

React is a JavaScript library for building user interfaces. It uses a declarative, component-based paradigm and aims to be both efficient and flexible..

• How to use / (slash), without using it as a path in React routing?
• Difference between sending a function as arrow function
• how to remove key values in array of objects
• How do I send a nested list/array through socket.emit()
• expected 0 arguments, but got 1 while passing arguments to the createAsyncThunk function

Recursion is a kind of function call in which a function calls itself. Such functions are also called recursive functions. Structural recursion is a method of problem solving where the solution to a problem depends on solutions to smaller instances of the same problem..

• Recursive program to find the value of x when xˣ = N
• Why is my insert() function not inserting a new root node?
• Can anyone explain why does this recursive function crash?
• Recursive async function returning undefined
• Recursive async function returning undefined

Redux is a pattern and library for managing JavaScript application state, using events called "actions". It serves as a centralized store for state that is needed across your entire application, with rules ensuring that the state can only be updated in a predictable fashion. Redux make it easier to understand when, where, why, and how the state in your application is being updated, and how your application logic will behave when those changes occur..

• display one question on radio button change and submit the user answer after every 3 questions react
• display one question on radio button change and submit the user answer after every 3 questions react
• react redux importing reducer dispatch
• How can I prevent to add data if the object property value is different using react js
• Can't fix error: Actions must be plain objects. Instead, the actual type was: 'function'

Regular expressions provide a declarative language to match patterns within strings. They are commonly used for string validation, parsing, and transformation. Because regular expressions are not fully standardized, all questions with this tag should also include a tag specifying the applicable programming language or tool. Do not post questions asking for an explanation of what a symbol means or what a particular regular expression will match..

• How can I create a formula that reads the hierarchy number structure and add the parent code for the child in Google Sheet?
• Check html tag width size
• Validate filename to prevent characters ',!,@,#,$,%,^,&,* using RegEx in JavaScript
• How to extract substring between parentheses that start with a digit, and has multiple sets of parentheses
• Regex expression to remove specific characters

REST (Representational State Transfer) is a style of software architecture for distributed hypermedia systems such as the World Wide Web. It has increased in popularity relative to RPC architectures such as SOAP due to the intrinsic de-coupling of client from server that comes from having a uniform interface between heterogeneous systems..

• Spread Operator - TypeScript
• Lumen changes table name in query
• How to transmit "metadata" of an HTML-element to a function? / Individual ID for HTML elements created via jinja2
• Spring boot Controller json response has a field name "empty"
• Empty List obtained in the Controller function for a POST request SpringBoot HIbernate

Select is a common keyword used to query data. 'select()' is also a programming function for triggering code based on file handle or other system activity. Do not use this tag for questions related to: HTML <select> tag (use [html-select]); language integrated query such as LINQ or similar, etc..

• How to open an activity by selecting an item from navigation drawer's menu? [KOTLIN]
• MySql Select inside Select with Operator IN
• How I can use Substring for Update in SQL right?
• SQL select instance in table if it does no longer exist with later year value
• SQL select instance in table if it does no longer exist with later year value

The Sequelize library provides an ORM (Object-Relational-Mapper) for Node.js, written entirely in JavaScript. Provides easy mapping for MySQL, MariaDB, SQLite, PostgreSQL and SQL Server..

• Having an issue writing a functional sequelize query for case-when
• MySQL with Typescript doesn't store multiple data - discord.js
• Count records for each day between the startdate and enddate in sequelize ORM (Performing this query in nodejs)
• Can someone help me in convert this MySql query to sequelize?
• Can someone help me in convert this MySql query to sequelize?

Shiny is an R package that makes it easy to build interactive web applications using only R..

• Using pipe (%>%) based on function parameter?
• How to make leaflet map and absolutePanel of inputs / outputs full screen in shiny
• Filtering and adjusting data table
• How can you filter a reactive data table with a checkbox in R shiny without breaking the "spread" function?
• How I should create a "clear" button for eliminating rows in R shiny?

Sorting is the process of applying some order to a collection of items..

• Check if array is sorted using O(1)
• Method to find second highest number in an array in java
• How to select the cell with the highest value based on 2 cells
• Sort sheet according to birthday date without considering the year of a date
• How to create a custom sort

Use this tag for questions about separating an item (e.g. a string) into parts, often by a delimiter or regular expression..

• grouby function with filtered conditions
• How can I split the price to get one price
• How can I split the price to get one price
• Find a regular expression to get substrings with file extensions
• PHP: Split a string at the first period that isn't the decimal point in a price or the last character of the string

The Spring Framework is an open source framework for application development on the Java platform. At its core is rich support for component-based architectures, and it currently has over twenty highly integrated modules..

• Mock consumers interface in subscribe method
• Spring Boot - Unable to mock using Mockito&#39;s given(), Optional always empty
• Create custom finder with spring
• Springboot- Error creating bean with name 'defaultValidator'
• Spring boot: How to Save data to specific DTYPE

Structured Query Language (SQL) is a language for querying databases. Questions should include code examples, table structure, sample data, and a tag for the DBMS implementation (e.g. MySQL, PostgreSQL, Oracle, MS SQL Server, IBM DB2, etc.) being used. If your question relates solely to a specific DBMS (uses specific extensions/features), use that DBMS's tag instead. Answers to questions tagged with SQL should use ISO/IEC standard SQL..

• How to use COUNT () OVER(Partition) along with where clause
• Postgresql - Filter out data within a single query
• Convert/Format String to Int (Time to Hours)
• CHECK constraint with multiple conditions MySQL
• Number of Customer Purchases in Their First Month

SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine..

• how to avoid duplicate insertion sqlite
• Update and renew data based on data in other tables
• returning a object gives undefined, using db.all() sqlite3 javascript
• SQFLite: How to make a "SELECT table WHERE LIKE '%a word%'" query
• Is SQLite useful for THIS purpose?

The contents of memory locations, at any given point in the program's execution, is called the program's state..

• React 18, useEffect is getting called two times
• React 18, useEffect is getting called two times
• how can i add input value to state in React.js?
• how can i add input value to state in React.js?
• modifie style base on state with styled component

A string is a finite sequence of symbols, commonly used for text, though sometimes for arbitrary data..

• Why does the output only produce the last line of the write() call?
• Get everything after specific word and before specific word in PHP
• Regex expression to remove specific characters
• Remove pattern that occurs outside of words
• How to apply custom formatting for a JSON stringify?

A keyword in various programming languages whose syntax is similar to or derived from C (C++, C#, Swift, Go, Rust, etc.). Use a specific programming language tag to tag questions involving use of a `struct` as syntax and semantics can be language dependent. Keyword defines or declares a data type composed of other data types. Each member of a struct has its own area of memory (as opposed to a `union` whose members share a single area of memory)..

• struct and variable looping C language
• How to reverse a linked list implementation of a queue
• Pass pointer of struct with recursive function
• Using arrays instead of vectors in C
• How do I pass a struct as an argument in pthread in c?

Scalable Vector Graphics (SVG) is an XML-based two-dimensional vector graphics format that can also be used in HTML. Do not add this tag just because your project uses SVG. Instead, add the tag if your question is either about SVG, or closely related to it, like how to achieve something with SVG..

• Why does Xamarin.FFImageLoading SVG is not working on Android 11 & 12?
• How to set width and heigh of UIButton that is added as custom view of UIBarButtonItem when using SVG images?
• SVG text not horizontally center aligning
• SVG text not horizontally center aligning
• React: mapping through a list of svg images

Swift is a general-purpose programming language developed by Apple Inc first released in 2014 for its platforms and Linux. Swift is open-source. Use the tag only for questions about language features, or requiring code in Swift. Use the tags [ios], [ipados], [macos], [watch-os], [tvos], [swiftui], [cocoa-touch], and [cocoa] for (language-agnostic) questions about the platforms or frameworks..

• Swift - Tableview reloads only after second tap of the tab bar
• error response decoding and passing into alert
• How to decode a JSON array with no name?
• Firebase function not getting called inside a forEach loop with a DispatchGroup
• Swift: Make Int Enum conform to Plottable protocol in order to show a legend using Swift Charts

SwiftUI is a way to build user interfaces across all Apple platforms. Build user interfaces for any Apple device using one set of tools and APIs. With a declarative Swift syntax that’s easy to read and natural to write, SwiftUI works seamlessly with Xcode design tools to keep your code and design perfectly in sync. Automatic support for Dynamic Type, Dark Mode, localization, and accessibility. Use this tag for questions about SwiftUI on any platform..

• Swfit: Trouble running async functions in background threads (concurrency)
• Swift: Make Int Enum conform to Plottable protocol in order to show a legend using Swift Charts
• Transitions not working inside NavigationView
• How do I change and persist the button color after favoriting and then switch back in SwiftUI?
• How to make button visible in scrollview if it's related textfield has been focused

Symfony refers to both a PHP framework for building web applications as well as a set of components on which the framework is built. This tag refers to the currently supported major versions 3.x, 4.x and 5.x. Alternatively you can specify an exact version using the respective tag. This tag should not be used for questions about Symfony 1.x. Please use the Symfony1 tag instead..

• What do I have to import?
• Symfony 5.4 SecurityBundle, cant login after register
• Upgrading to Symfony 6 from 5.3
• To use Doctrine entity attributes you'll need PHP 8, doctrine/orm 2.9, doctrine/doctrine-bundle 2.4 and symfony/framework-bundle 5.2
• Symfony validator conditional validation

The templates tag is used in multiple contexts: generic programming (especially C++), and data/document generation using template engines, web template for a pre-designed webpage, or set of HTML webpages. When using this tag on implementation heavy questions - tag the code language the implementation is written in..

• argument list for class template "Node" is missingC/C++(441)
• Is it possible to create a `map_error` function that takes a lambda?
• C++17 - How to deduct the variadic parameter pack of a lambda passed as a template parameter?
• How do you handle tinyMCE inline mode while building an email template editor?
• How to overload function template function inside a class template?

DO NOT USE if your question relates to one or two components of the tidyverse, such as dplyr or ggplot2. Use *those* tags, and tag with `r` as well for a better response..

• geom_line group by year in R
• Merging two dataframes in R with missing values and repeated measurements
• How to extract Month and Year from Date column and add two more columns for each
• Summarising same column twice with dplyr return NA
• How to fill in every nth row and leave above rows with zero using dplyr?

T-SQL (Transact Structured Query Language) is the extension of SQL functionality supported by Sybase ASE and Microsoft SQL Server. Do not use this tag for MySQL, PostgreSql, Oracle(Pl/SQL) related queries. Please note that SQL code which is being written using LINQ will not also be the part of this tag. This tag specifically created for advanced SQL programming using Microsoft SQL Server..

• How do I import this JSON into 2 separate tables?
• Is there a way to check that none of the rows in a grouping contain a value?
• Adding max and case to data?
• Copy rows and increase Version-Column without Cursor / Loop
• Problem with creating a SQL view with multiple joins

TypeScript is a typed superset of JavaScript that transpiles to plain JavaScript. It adds optional types, classes, interfaces, and modules to JavaScript. This tag is for questions specific to TypeScript. It is not used for general JavaScript questions..

• expected 0 arguments, but got 1 while passing arguments to the createAsyncThunk function
• Variable from inside React Hook useEffect will be lost after each render
• Intersection Observer in Typescript throws error in useRef
• class-transformer @Type() decorator doesn't work
• How to get the difference between two arrays of objects in Typescript/Javascript

UIKit (not to be confused with the front-end framework GetUIKit) is the object-oriented framework that is responsible for most of the iOS user interface..

• Class-constrained protocols don't adopt MainActor
• How to automatically show a MKPointAnnotation title when a function is called?
• Update a label's text in a UIStackView and while keeping the text centered?
• Swift how to Create Multipage Form and Save Data to Firebase?
• UIBarButtonItem text two colours

UITableView is a class used for displaying and editing lists of information on iOS. A table view displays items in a single column. UITableView is a subclass of UIScrollView, which allows users to scroll through the table, although UITableView allows vertical scrolling only..

• How to append elements into an array from another View Controller in Swift
• Transparent section header?
• Call contextMenuConfigurationForRowAt on Click instead of Long Press
• Make tableView display even and odd number of cell titles Swift
• UITableView not reloading data when SearchBar is Canceled

Unity is a cross-platform game engine by Unity Technologies..

• I am getting a NullReferenceException with unity collisions
• Error CS1579 foreach statement cannot operate on variables of type 'GameObject'
• How to use LookRotation to rotate an object based on hand positions?
• Unity Crashes Because of For Statement
• Problem with Asset Bundles in Unity 2020.3.30f1

Validation is used to check data to make sure it fits whatever required specifications are set for it. Typically Validation is used in checking input data, and in verifying data before storage..

• Make select or textarea required if checkbox is checked
• ModelState.IsValid show true for invalid entry on Test
• Symfony validator conditional validation
• Symfony validator conditional validation
• Multi step Blazor form attempts to get submitted on click of an ordinary button

THIS IS AMBIGUOUS; USE SPECIFIC-LANGUAGE TAGS WHENEVER APPLICABLE. A variable is a named data storage location in memory. Using variables, a computer program can store numbers, text, binary data, or a combination of any of these data types. They can be passed around in the program..

• struct and variable looping C language
• JQ How to replace entire array with a variable arg
• How in R can I combine two groups of data and add them each into single columns after parsing?
• Replacing characters in an array with numbers
• Replacing characters in an array with numbers

Visual Basic.NET (VB.NET) is a multi-paradigm, managed, type-safe, object-oriented computer programming language. Along with C# and F#, it is one of the main languages targeting the .NET Framework. VB.NET can be viewed as an evolution of Microsoft's Visual Basic 6 (VB6) but implemented on the Microsoft .NET Framework. DO NOT USE this tag for VB6, VBA or VBScript questions..

• asp.net: why am I getting System.Collections.Generic.List`1[System. String] when I try to print values from a list in an asp.net grid view?
• Get value from JArray item with has inconsistent values
• How to verify all button in approved in gridview while click on other button that is outside the gridview
• Which class can I use to pass a "RecordSet" between an WinForm VB.Net EXE program and a classes DLL?
• Call a Sub With Parameters from Another Sub

A vector is a single-dimensional array: it contains components that can be accessed using an integral index. In some languages the size of a vector can grow or shrink as needed to accommodate adding and removing items after the Vector has been created. Use 'vector-graphics' for graphic display..

• Member values not accessed in vector of instances of different subclasses
• C++ [heap-use-after-free error] with referencing and push_back to vector
• Error while trying to use a member class in a vector
• Using arrays instead of vectors in C
• Calculate 3D arc from three vectors and a given radius

Vue.js is an open-source, progressive JavaScript framework for building user interfaces that aims to be incrementally adoptable. Vue.js is mainly used for front-end development and requires an intermediate level of HTML and CSS. Vue.js questions are highly version specific and should always be tagged with [vuejs2] or [vuejs3] in addition to this tag..

• Loop until find an array empty in Javascript
• format currencies in a Vue component?
• Vuejs how can i attach html with v-html
• Nuxt3 screen width problem with mobile view
• Replacing the JSON from API with HTML in the Vue.js app

Do not use this tag. For questions related to an aspect of the world wide web, use a more specific tag for it, such as [uri], [html], [http] or [w3c]..

• First accordion to be made open by default either by JavaScript or CSS
• How to I align my icons in the navbar in css react?
• How to I align my icons in the navbar in css react?
• Part of the body going off-screen
• Part of the body going off-screen

Questions related to web browser's Web APIs specification. Web APIs is a set of numerous different APIs related to programmatically using web browser with your JavaScript code. For example the visual web page rendered is represented as and controlled by Document Object Model (DOM), which itself is a Web API. Or when using console.debug() function to log messages to the browser's console, you are using Console API..

• Send image from ASP.NET Web API to Angular client
• POST Request of a JSON Array
• How To Check The Task Result In the Controller In ASP.NET Core Web API
• .NET 6 API method is not working after migration to .NET 6
• Dynamically load tables from Entity Framework with string name of tables

Web Forms is a part of the ASP.NET web framework. It is one of the programming models you can use to create web applications. Web Forms are pages that users request through their browsers and that form the user interface (UI) that gives web applications their look and feel..

• How to implement custom paging in gridview in ASP.NET using C# with data modified in code-behind
• .Net RedirectTo with querystring from original request Sonar Issue
• Replace DataReader data
• Can Application property of HttpApplication class be used to calculate current Active Users?
• Executing a method which is named via a config file

Writing software specific to the Microsoft Windows operating system: APIs, behaviors, etc. GENERAL WINDOWS SUPPORT IS OFF-TOPIC. Support questions may be asked on https://superuser.com.

• virtualenv not activated on windows 11
• Trying to output a custom powershell object where I can align each line of two different variables containing Category:Description
• What does '/p:' on the Windows Command Line mean
• Is there a proper way to receive input from console in UTF-8 encoding?
• View Windows UpTime dynamically in WPF

This tag is for programming-specific questions about the WordPress content management system. Off-topic questions include those about theme development, WordPress administration, management best practices, server configuration, etc. These are best asked on the dedicated WordPress Development Stack Exchange site (https://wordpress.stackexchange.com)..

• How to print the object values in WordPress
• Can you add apps made from (js, nodejs, express and mongodb) in a wordpress website?
• How to init hidden swiper on page load?
• What is the general practice to redirect users back to their shopping cart after a certain criteria is matched
• Replace a specific text value after call home_url

Windows Presentation Foundation, or WPF, is a subsystem for rendering user interfaces in Windows-based applications..

• How can I retrieve data from my PostgreSQL database? WPF/C#
• OnPropertyChanged() only triggered by manually editing a TextBox
• WPF switch between 2 Check boxes
• SelectedItem returns null in WPF MVVM pattern
• WPF TabControl binding doesn't let me update tab data

Xamarin is a platform consisting of Xamarin.iOS, Xamarin.Android, Xamarin.Mac and Xamarin Test Cloud. It allows you to write cross-platform native Apps for iOS, Android and Mac and follow your app through its entire lifecycle. The introduction of Xamarin.Forms supports Native UI development for iOS, Android and Windows.

• Xamarin Forms Android - How to Enable Proguard Shrinker in Visual Studio for Mac 2019
• How to add an CheckedChanged or SelectedValueChaged event in a RadioButton
• How to wait until or know when multiple animations are completed in Xamarin Forms?
• File.WriteAllText System.UnauthorizedAccessException Access to the path 'c:\mafirst.json' is denied error in Xamarin.forms using JSON
• File.WriteAllText System.UnauthorizedAccessException Access to the path 'c:\mafirst.json' is denied error in Xamarin.forms using JSON

Xamarin.Forms is a Microsoft product allowing the building of native, cross-platform apps for Android, iOS, Windows, and others from a single shared C# codebase..

• Xamarin Form WebView different behavior between Android and iOS when navigating to link from local html content
• How to wait until or know when multiple animations are completed in Xamarin Forms?
• File.WriteAllText System.UnauthorizedAccessException Access to the path 'c:\mafirst.json' is denied error in Xamarin.forms using JSON
• File.WriteAllText System.UnauthorizedAccessException Access to the path 'c:\mafirst.json' is denied error in Xamarin.forms using JSON
• How can I pass my list to button click event?

Extensible Application Markup Language (XAML) is a declarative XML-based language used for initializing structured values and objects in various frameworks. When a question is about the usage of XAML with a specific framework a tag for the framework should also be provided e.g. [wpf] (Windows Presentation Foundation), [silverlight], [windows-phone], [windows-store-apps] (Windows 8 store apps), [win-universal-app], [xamarin.forms] or [workflow-foundation].

• SelectedItem returns null in WPF MVVM pattern
• How to pass parameter to AppShell TabBar page?
• Clear TextBox's text on button click in MVVM
• Change DataTemplate Child Dynamically
• Approach for defining bindable properties for Xaml custom control wrappers for UWP/WinUI

Xcode is Apple's integrated development environment (IDE). USAGE NOTE: Use this tag only for questions about the Xcode IDE itself, and not for general Mac or iOS programming topics. Use [cocoa] for Mac programming questions, and [cocoa-touch] or [iOS] or [Swift] for iOS programming questions..

• How can I make text resize automatically to fit within a frame in swiftUI?
• How to automatically show a MKPointAnnotation title when a function is called?
• CollectionViewCells are being mixed with each other
• Getting error : Expected expression in list of expressions
• Keep my own non-published ios app in my phone

XML (Extensible Markup Language) is a structured document format defining text encoding rules. When using this tag include additional tags such as programming language, tool sets, XML technologies being used, and other tags describing the environment of the problem posted. XML flexibility lends to a wide variety of uses for human and machine data transfer so be specific as to tools and libraries. .

• XML file with different elements
• Why is my button not working in andriod kotlin *There is no error*
• XML file to PostgreSQL with <row> tag
• How to change color buttons of navigation
• How to search in XML? (PHP)