What’s the difference between $evalAsync and $timeout in AngularJS?

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I recently answered essentially this question here: https://stackoverflow.com/a/17239084/215945
(That answer links to some github exchanges with Misko.)

To summarize:

  • if code is queued using $evalAsync from a directive, it should run after the DOM has been manipulated by Angular, but before the browser renders
  • if code is queued using $evalAsync from a controller, it should run before the DOM has been manipulated by Angular (and before the browser renders) — rarely do you want this
  • if code is queued using $timeout, it should run after the DOM has been manipulated by Angular, and after the browser renders (which may cause flicker in some cases)

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