View source for Event-driven programming

In [[computer programming]], '''event-driven programming''' is a [[programming paradigm]] in which the flow of the program is determined by events such as user actions (mouse clicks, key presses), sensor outputs, or messages from other programs/threads.

== Description ==

Event-driven programming is the dominant paradigm used in graphical user interfaces and other applications (e.g. [[JavaScript]] [[Web application|web applications]]) that are centered on performing certain actions in response to user input.

In an event-driven application, there is generally a main loop that listens for events, and then triggers a callback function when one of those events is detected.

In embedded systems the same may be achieved using hardware interrupts instead of a constantly running main loop.

Event-driven programs can be written in any programming language, although the task is easier in languages that provide high-level abstractions, such as [[Closure (computer programming)|closures]].

== See also ==

* [[Closure (computer programming)]]
* [[Computer programming]]
* [[Programming paradigm]]

== External links ==

* [https://en.wikipedia.org/wiki/Event-driven_programming Event-driven programming] @ Wikipedia

[[Category:Computer programming]]
[[Category:Software]]
[[Category:Software development]]