How to make fadeOut effect with pure JavaScript

Question

I\'m trying to make fadeOut effect for a div with pure JavaScript.

This is what I\'m currently using:

//Imagin         


        

Answer 1

Just this morning I found this piece of code at http://vanilla-js.com, it's very simple, compact and fast:

var s = document.getElementById('thing').style;
s.opacity = 1;
(function fade(){(s.opacity-=.1)<0?s.display="none":setTimeout(fade,40)})();

You can change the speed of the fade changing the second parameter in the setTimeOut function.

var s = document.getElementById('thing').style;
s.opacity = 1;
(function fade(){(s.opacity-=.1)<0?s.display="none":setTimeout(fade,40)})();

#thing {
  background: red;
  line-height: 40px;
}

I will fade...