AngularJS基础 ng-keydown 指令简单示例

AngularJS ng-keydown 指令

AngularJS 实例

按下按键时执行的代码:

{{count}}

该实例在输入框每次按下按键时，计算变量 "count" 会自动加 1。

定义和用法

ng-keydown 指令用于告诉 AngularJS 在指定 HTML 元素上按下按键时需要的操作。

ng-keydown 指令不会覆盖元素的原生 onkeydown 事件, 事件触发时，ng-keydown 表达式与原生的 onkeydown 事件将都会执行。

按键敲击的事件顺序:

1.Keydown

2.Keypress

3.Keyup

语法

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