jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

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Can be accessed at:

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slice vs match (v2)

Revision 2 of this benchmark created by krwck on October 14, 2014

Setup

var stringy = Function.prototype.call.bind(Object.prototype.toString);

Test runner

Ready to run.

Testing in
Test		Ops/sec
slice	`Object.prototype.toString.call([]).slice(8, -1);`	ready
match	`Object.prototype.toString.call([]).match(/^\[object\s(.*)\]$/i)[1];`	ready
instanceof	`[] instanceof Array;`	ready
pure call	`stringy([])`	ready

Revisions

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

Revision 2: published by krwck on October 14, 2014