macOS (formerly known as OS X or Mac OS X) is the desktop operating system from Apple, found on Macintosh computers. Use this tag only if your question relates to using macOS APIs or macOS-specific behavior, not because you happen to run your code on macOS. Questions relating to using or troubleshooting macOS are off-topic and belong in the Ask Different community instead.

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.

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.

Use this tag if you have a specific question about Visual Studio features and functionality. DO NOT use this tag on questions regarding code which merely happened to be written in Visual Studio. Consider tagging the exact technology area your question links to and also tagging a more specific version of Visual Studio. Please mention your exact VS version, edition, and update level in your question. DO NOT use this tag on questions regarding VS Code.

Scala is a general-purpose programming language principally targeting the Java Virtual Machine. Designed to express common programming patterns in a concise, elegant, and type-safe way, it fuses both imperative and functional programming styles. Its key features are: an advanced static type system with type inference; function types; pattern-matching; implicit parameters and conversions; operator overloading; full interoperability with Java; concurrency

PowerShell is a cross-platform command line and scripting utility from Microsoft. Use this tag for questions about writing and executing PowerShell scripts ONLY. Programming questions specific to the cross-platform version PowerShell Core (Windows, macOS, and Linux) should be tagged [powershell-core]. Questions about system administration should be asked on Super User or Server Fault.

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.

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.

Bootstrap is a frontend framework designed to kick-start development of Web apps and sites. For questions related to a version of Bootstrap also use the specific version's tag from "twitter-bootstrap-2", "twitter-bootstrap-3", "bootstrap-4" and "bootstrap-5" tags.

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.

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