Issues relating to the resizing of controls, windows, forms or screens.

A piece of code is thread-safe if it only manipulates data structures in a way that allows consistent execution of this code by multiple threads. A code may be thread safe, conditionally safe (mutual exclusion required) or unsafe (can only be safely used by one thread).

A unique identifier used to retrieve a paired value. Used in hash tables and databases.

Cross-browser development refers to the practice of building web sites, web applications, libraries, or components so that they function across different web browsers and rendering engines.

In-app purchase (IAP) usually refers to the acquisition of a feature for an application from within the application itself or the buying of digital goods from within an application. Use this tag for questions about writing code for the buying process. Questions about app-store policies or about specific transactions are off-topic on Stack Overflow and should not be posted.

Use this tag to indicate that when an application is run, it reports a runtime error or runtime exception after or during the execution of the application. Use this tag with other tags that indicate programming language being used ([java], [c++], etc.) or for standard utilities or development environments include a tag indicating the application being run ([maven], [visual-studio], [gcc], etc.).

`printf` is a common function for formatted output. C and many other languages have a whole family of related functions. Only use this tag if the question is directly concerned with `printf` or related functions.

In AngularJS, a scope is an object that refers to the application model. It is an execution context for expressions.

In computing, the kernel is a computer program that manages input/output requests from software, and translates them into data processing instructions for the central processing unit and other electronic components of a computer. The kernel is a fundamental part of a modern computer's operating system. This tag is for general questions regarding code that runs in the context of an operating system kernel.

Elixir is an open-source, dynamic, compiled, general purpose functional programming language. It was designed to be fully compatible with the Erlang platform and is well suited to writing fault-tolerant, distributed applications with soft real-time guarantees and the ability for hot-code-swapping.

CocoaPods is the dependency manager for Cocoa projects.