是否可以以编程方式模拟按键事件? [英] Is it possible to simulate key press events programmatically?

问题描述

是否可以在 JavaScript 中以编程方式模拟按键事件?

Is it possible to simulate key press events programmatically in JavaScript?

推荐答案

一个在 webkit 和 gecko 中都可以使用的非 jquery 版本:

A non-jquery version that works in both webkit and gecko:

var keyboardEvent = document.createEvent('KeyboardEvent');
var initMethod = typeof keyboardEvent.initKeyboardEvent !== 'undefined' ? 'initKeyboardEvent' : 'initKeyEvent';

keyboardEvent[initMethod](
  'keydown', // event type: keydown, keyup, keypress
  true, // bubbles
  true, // cancelable
  window, // view: should be window
  false, // ctrlKey
  false, // altKey
  false, // shiftKey
  false, // metaKey
  40, // keyCode: unsigned long - the virtual key code, else 0
  0, // charCode: unsigned long - the Unicode character associated with the depressed key, else 0
);
document.dispatchEvent(keyboardEvent);

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