Angularjs ng-keypress Instruction
Angularjs instance
Code to execute when the key is pressed:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="">
<input ng-keyup="count = count + 1" ng-init="count=0" />
<h1>{{count}}</h1>
<p>In this example, each time the key of the input box is released, the calculation variable "count" will automatically add 1. </p>
</body>
</html>
Definitions and usage
The ng-keypress directive is used to tell angularjs what action is required to press a key on the specified HTML element.
The ng-keypress directive does not overwrite the native onkeypress event of the element, and the ng-keypress expression and the native onkeypress event are executed when the event is triggered.
Sequence of events for keystroke strokes:
1.Keydown
2.Keypress
3.Keyup
Grammar
<element ng-keypress= "expression" ></element>
<input>, <select>, <textarea>, and other editable elements support the directive.
Parameter values
| value | Description |
|---|---|
| Expression | Press the key to release the executed expression. |
The above is the Angularjs ne-keypress instructions of the data collation, follow-up continue to add!
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