Comments (6)
robinduckett
commented on May 18, 2024
This issue is easily repeatable as so:
<html>
<head>
<title>Async Test</title>
<script type="text/javascript" src="https://github.com/caolan/async/raw/master/dist/async.min.js"></script>
</head>
<body>
<script type="text/javascript">
var test = [0, 1, 2, 3, 4];
async.forEachSeries(test, function(item, callback) {
alert(item);
setTimeout(callback, 1000);
}, function() {
alert('all done');
});
</script>
</body>
</html>Open that in Firefox, and Chrome and IE.
In Chrome and IE, the page alerts 0 to 4 followed by all done in order every second.
In Firefox, it outputs 0 then 1 then all done.
It seems Firefox will only do the first couple of elements before getting confused and going to lie down.
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robinduckett
commented on May 18, 2024
Anyone?
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cjroebuck
commented on May 18, 2024
+1, Im using forEachSeries and in chrome it works flawlessly, in firefox it processes the first item and gives up
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mltucker
commented on May 18, 2024
Looks OK in firefox 20.
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dougwilson
commented on May 18, 2024
@robinduckett your issue is because in Firefox prior to 13, you are actually using setTimeout incorrectly with async. See, before Firefox 13, Firefox passed a non-standard parameter as the first argument to your callback function. async expects this to be an error object, so upon seeing this, async, stops the iteration and calls the "all done" alert. You can work-around this Firefox oddity if you change
setTimeout(callback, 1000);to
setTimeout(function () { callback(); }, 1000);Also to note, the function to async.forEachSeries where you call "all done" gets an argument which is an error argument. If you were not ignoring it, you may have seen Firefox 8 returning an error that was a number.
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alizbazar
commented on May 18, 2024
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Date: Fri, 28 Mar 2014 10:15:21 -0700
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To: caolan/async [email protected]
Message-ID: caolan/async/issue/67/issue_event/[email protected]
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Subject: Re: [async] Async.js doesn't seem to work in firefox (8.0.1) (#67)
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