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arguments: Array#slice, Array#apply, Array.from, fo, while and rest #jsbench #jsperf (http://jsbench.github.io/#1e36f485d47f9cf8009eec50a1b80457) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>arguments: Array#slice, Array#apply, Array.from, fo, while and rest #jsbench #jsperf</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script> | |
| <script src="./suite.js"></script> | |
| </head> | |
| <body> | |
| <h1>Open the console to view the results</h1> | |
| <h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2> | |
| </body> | |
| </html> |
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| "use strict"; | |
| (function (factory) { | |
| if (typeof Benchmark !== "undefined") { | |
| factory(Benchmark); | |
| } else { | |
| factory(require("benchmark")); | |
| } | |
| })(function (Benchmark) { | |
| var suite = new Benchmark.Suite; | |
| Benchmark.prototype.setup = function () { | |
| var rnd = Math.random; | |
| var slice = [].slice; | |
| var results = []; | |
| function resolve(callback) { | |
| var retVal = callback(rnd(), rnd(), rnd(), rnd(), rnd()); | |
| if (retVal.length !== 5) { | |
| throw 'FAIL:retVal'; | |
| } | |
| results.push(retVal); | |
| } | |
| }; | |
| Benchmark.prototype.teardown = function () { | |
| if (results.length < 1) { | |
| throw 'FAIL:results'; | |
| } | |
| }; | |
| suite.add("Array#slice.call", function () { | |
| /** Array#slice.call **/ | |
| resolve(function () { | |
| return slice.call(arguments, 0); | |
| }); | |
| }); | |
| suite.add("Array#slice.apply", function () { | |
| /** Array#slice.apply **/ | |
| resolve(function () { | |
| return slice.apply(arguments); | |
| }); | |
| }); | |
| suite.add("Array.from", function () { | |
| /** Array.from **/ | |
| resolve(function () { | |
| return Array.from(arguments); | |
| }); | |
| }); | |
| suite.add("for", function () { | |
| /** for **/ | |
| resolve(function () { | |
| var args = []; | |
| for (var i = 0, n = arguments.length; i < n; i++) { | |
| args[i] = arguments[i]; | |
| } | |
| return args; | |
| }); | |
| }); | |
| suite.add("while", function () { | |
| /** while **/ | |
| resolve(function () { | |
| var args = []; | |
| var idx = arguments.length; | |
| while (idx--) { | |
| args[idx] = arguments[idx]; | |
| } | |
| return args; | |
| }); | |
| }); | |
| suite.add("rest", function () { | |
| /** rest **/ | |
| resolve(function (...args) { | |
| return args; | |
| }); | |
| }); | |
| suite.on("cycle", function (evt) { | |
| console.log(" - " + evt.target); | |
| }); | |
| suite.on("complete", function (evt) { | |
| console.log(new Array(30).join("-")); | |
| var results = evt.currentTarget.sort(function (a, b) { | |
| return b.hz - a.hz; | |
| }); | |
| results.forEach(function (item) { | |
| console.log((idx + 1) + ". " + item); | |
| }); | |
| }); | |
| console.log("arguments: Array#slice, Array#apply, Array.from, fo, while and rest #jsbench #jsperf"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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