Can JavaScript Programmatically Simulate Key Press Events?

Programmatic Simulation of Key Press Events in JavaScript

Is it feasible to programmatically replicate key press events within a JavaScript framework?

Answer:

Indeed, it is possible to simulate keystroke events using JavaScript. The following code sample, independent of jQuery, is compatible with both WebKit and Gecko-based browsers:

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

keyboardEvent[initMethod](
  'keydown',
  true,
  true,
  window,
  false,
  false,
  false,
  false,
  40,
  0
);
document.dispatchEvent(keyboardEvent);

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