JavaScript's version of ActionScript's Event.ENTER_FRAME event?

Question

I am trying to learn JavaScript and I am wondering whether JavaScript has a event listener just like ActionScript\'s ENTER_FRAME. Basically, I want this event listener to li

Answer 1

You're looking for setInterval(func, time). In the case of making it work like ENTER_FRAME, then you would make time very small. So, if you wanted to imitate a frame rate of say, 30 times a second:

 // you will need to make sure you have good scoping around the function param.
 setInterval(function(){console.log('enterframe')}, 33) 
 // 33 is about 1000 milliseconds / 30.

Actually, setInterval is in Flash too -- flash.utils.setInterval.

As a side note -- unfortunately, setInterval (in both Flash and JS) can work against the native refresh rate. In Flash ENTER_FRAME avoids this -- you render when the swf re-renders. In the browser, well, setInterval simply can't do that.