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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Scientific E notation

Benchmark created by Mathias Bynens on July 26, 2010

Test runner

Ready to run.

Test Ops/sec

Using normal notation

Testing in
Test	Ops/sec
Using normal notation	`var x; x = 1000; x = 1000000; x = 1000000000; x = 1000000000000; x = 1000000000000000; x = 1000000000000000000; x = 1000000000000000000000;`	ready
Using scientific E notation	`var x; x = 1e3; x = 1e6; x = 1e9; x = 1e12; x = 1e15; x = 1e18; x = 1e21;`	ready

var x;
x = 1000;
x = 1000000;
x = 1000000000;
x = 1000000000000;
x = 1000000000000000;
x = 1000000000000000000;
x = 1000000000000000000000;

ready

Using scientific E notation

var x;
x = 1e3;
x = 1e6;
x = 1e9;
x = 1e12;
x = 1e15;
x = 1e18;
x = 1e21;

ready

Revisions

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

Revision 1: published by Mathias Bynens on July 26, 2010