forEach 和 for 性能比较

JavaScript performance comparison

Test case created by jjeejj

Preparation code

<script>
let arrs = new Array(1000000);
</script>
    

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
for
for (let i = 0; i < arrs.length; i++) {

};
pending…
forEach
arrs.forEach((arr) => {
 
});
pending…

You can edit these tests or add even more tests to this page by appending /edit to the URL.

Compare results of other browsers

0 Comments