Ultimate string concatenation tests

JavaScript performance comparison

Revision 4 of this test case created by

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/dojo/1.6/dojo/dojo.xd.js"></script>
<script>
dojo.require("dojox.string.Builder");
</script>
    

Preparation code output

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Push and join
var array = [];
for (var i = 0; i < 100000; i++) {
 array.push(array.length);
}

var str = array.join("");
pending…
String +=
var str = "";
for (var i = 0; i < 100000; i++) {
 str += str.length;
}
pending…

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