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

Object Literal Creation (v3)

Revision 3 of this benchmark created on October 20, 2011

Test runner

Ready to run.

Test Ops/sec

Standard

Testing in
Test	Ops/sec
Standard	`var bob = { test: 1, what: 'me', todo: function(){}, allDone: true };`	ready
One by One	`var bob = {}; bob.test = 1; bob.what = 'me'; bob.todo = function(){}; bob.allDone = true;`	ready
One by One (cautious)	`var bob = {}; bob['test'] = 1; bob['what'] = 'me'; bob['todo'] = function(){}; bob['allDone'] = true;`	ready

var bob = {
test: 1,
what: 'me',
todo: function(){},
allDone: true
};

ready

One by One

var bob = {};
bob.test = 1;
bob.what = 'me';
bob.todo = function(){};
bob.allDone = true;

ready

One by One (cautious)

var bob = {};
bob['test'] = 1;
bob['what'] = 'me';
bob['todo'] = function(){};
bob['allDone'] = true;

ready

Revisions

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

Revision 1: published by Blaine on October 18, 2011
Revision 2: published on October 20, 2011
Revision 3: published on October 20, 2011
Revision 5: published on October 20, 2011