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.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

check-js-type (v2)

Revision 2 of this benchmark created on July 22, 2013

Description

check js type

Test runner

Ready to run.

Testing in
Test		Ops/sec
typeof	`typeof {} === 'object';`	ready
instanceof	`({}) instanceof Object;`	ready
constructor	`({}).constructor === Object;`	ready
Object.prototype.toString.call	`Object.prototype.toString.call({}) === '[object Object]';`	ready

Revisions

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

Revision 1: published by wiky on June 27, 2012
Revision 2: published on July 22, 2013
Revision 3: published on January 7, 2014
Revision 5: published by Oscar Campbell on June 18, 2014
Revision 6: published by Eser Ozvataf on November 23, 2014
Revision 7: published on May 27, 2015