On 9/7/14, 9:35 PM, Boris Zbarsky wrote:
Now, and here's where I have a problem with your use of "the": the
Window that setTimeout is invoked on is NOT necessarily the same as the
global object of the function.
Just to make this concrete, see
http://fiddle.jshell.net/tmt5e9m6/2/show/ which has pretty much the
following source, for posterity:
<!DOCTYPE html>
<iframe></iframe>
<script>
onload = function() {
var win = frames[0];
win.test = "INNER";
window.test = "OUTER";
win.setTimeout(function() {
alert(this.test);
});
}
</script>
As far as I can tell, this alerts "INNER" in IE 10 or later, Firefox 2
or later (and probably earlier; I don't have earlier versions on hand
right this second), Chrome 14 or later (and likely earlier; once again I
have no earlier versions on hand), Safari 4 or later (and again likely
earlier).
IE6 through IE9 alert "OUTER", for what it's worth.
-Boris
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