What use is setInterval with a value of zero?

Question

I have seen some JavaScript code that has the following:

var myFunc = function () { 
    timeout = setTimeout(myFunc, 0); 
}

It seems that this would immediately recall the function.

What use case is there for this?

Also see http://stackoverflow.com/a/4575011/453277 (which I think explains it better). — Tim M., Aug 21 '13 at 20:46
how is this a duplicate if the other questions were about setTimeout, which is NOT the same as setInterval? i've not thought of using setInterval(f,0), so it seems like a new concept to me... — dandavis, Aug 21 '13 at 21:19

score 1 · Accepted Answer · edited May 23 '17 at 10:31

1

Read this.

In short, it "pauses" the JavaScript execution to let the rendering threads catch up. It gives the browser a chance to finish doing some none-JavaScript things that have been waiting to finish before attending to this new piece of JavaScript.

edited May 23 '17 at 10:31

Community

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answered Aug 21 '13 at 20:42

federico-t

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did you vote to close as a duplicate? I think you should. – John Dvorak Aug 21 '13 at 20:44
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Not useful. You are merely restating what the duplicate (now officially closed as such) says. The correct approach is to vote to close. – John Dvorak Aug 21 '13 at 20:47
@JanDvorak Yeah, I'll do that next time. – federico-t Aug 21 '13 at 20:50

What use is setInterval with a value of zero?

1 Answers1