Awesome community module

Benchmark.js v2.1.4

A robust benchmarking library that supports high-resolution timers & returns statistically significant results. As seen on jsPerf .

Documentation

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Installation

Benchmark.js' only hard dependency is lodash . Include platform.js to populate Benchmark.platform .

In a browser:

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<script src="lodash.js"></script> <script src="platform.js"></script> <script src="benchmark.js"></script>

In an AMD loader:

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require({ 'paths': { 'benchmark': 'path/to/benchmark', 'lodash': 'path/to/lodash', 'platform': 'path/to/platform' } }, ['benchmark'], function(Benchmark) {/*…*/});

Using npm:

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$ npm i --save benchmark

In Node.js:

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var Benchmark = require('benchmark');

Optionally, use the microtime module by Wade Simmons:

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npm i --save microtime

Usage example:

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var suite = new Benchmark.Suite; // add tests suite.add('RegExp#test', function() { /o/.test('Hello World!'); }) .add('String#indexOf', function() { 'Hello World!'.indexOf('o') > -1; }) // add listeners .on('cycle', function(event) { console.log(String(event.target)); }) .on('complete', function() { console.log('Fastest is ' + this.filter('fastest').map('name')); }) // run async .run({ 'async': true }); // logs: // => RegExp#test x 4,161,532 +-0.99% (59 cycles) // => String#indexOf x 6,139,623 +-1.00% (131 cycles) // => Fastest is String#indexOf

Support

Tested in Chrome 54-55, Firefox 49-50, IE 11, Edge 14, Safari 9-10, Node.js 6-7, & PhantomJS 2.1.1.

BestieJS

Benchmark.js is part of the BestieJS “Best in Class” module collection. This means we promote solid browser / environment support, ES5 + precedents, unit testing, & plenty of documentation.