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This test compares speeds from ECMAscript5 (262) Array.prototype.forEach vs jQuery .each method and standard for..in, for methods.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script>
var arr = [],
loop = 5000;
while (loop--) {
arr[loop] = loop;
}
var fn = function(x) {
x = x;
};
var jQfn = function(i, v) {
v = v;
};
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
each() |
| ready |
forEach() |
| ready |
for..in |
| ready |
for |
| ready |
for, caching length |
| ready |
assign in loop declaration |
| ready |
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