AngularJS `ng-keyup` Directive

Execute an expression at every keystroke:

<input ng-keyup="count = count + 1" ng-init="count=0" />

<h1>{{count}}</h1>

Definition and Usage

The ng-keyup directive tells AngularJS what to do when the keyboard is used on the specific HTML element.

The ng-keyup directive from AngularJS will not override the element's original onkeyup event, both will be executed.

The order of a key stroke is:

1. Keydown

2. Keypress

3. Keyup

<element ng-keyup="expression"></element>

Supported by <input>, <select>, <textarea>, and other editable elements.

Value	Description
expression	An expression to execute when a keypress is finished.