In programming, a page footer (or simply footer) is part of page that is separated from the main body and appears at the bottom of a page.

NuGet is a Visual Studio extension that makes it easy to install and update open source libraries and tools in Visual Studio.

The UIPickerView class implements objects, called picker views, that use a spinning-wheel or slot-machine metaphor to show one or more sets of values. Appears on iOS.

Apply to questions related to the Razor Pages Framework, which is a feature of ASP.NET Core starting in ASP.NET Core version 2.0.

k-means is a clustering algorithm, implemented in popular data science tools. Use this tag for questions related to the k-means clustering algorithm itself, or to its use with the tools that implement it (alongside other tags specific to those tools).

This tag refers to something that is outside of a particular system. In other words, it is something that is not a part of the main system and therefore can be considered "extra".

Header files are used in some programming languages to hold source code as a single copy that may be reused in multiple source files. This tag should be used for questions about using header files. A tag for the programming language such as C, C++, PHP, or Ruby should be used along with this tag since header file usage can vary between programming languages. This tag is not normally used with Java or Go programming and the import directive.

Sublime Text is a text and source code editor for Linux, OS X and Windows. PLEASE DO NOT USE THIS TAG UNLESS YOUR QUESTION IS SPECIFICALLY ABOUT SUBLIME TEXT ITSELF. Do not tag your IDE or source code editor in questions about unrelated topics.

In programming, 'wait' refers to the act of pausing the execution of a program until a specific condition is met or a given amount of time has passed.

The center tag in HTML causes its contents to be centered within the parent element. It is deprecated and should no longer be used.

Look up is related to indexes and hash tables. It is the action of accessing fastly to an item in a large collection thanks to a index (a so-called lookup table).