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Untitled benchmark (http://jsbench.github.io/#08a0870fe1436ceede674dfab7af3de6) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>Untitled benchmark</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 () { | |
| function random() { | |
| return Math.floor(Math.random() * 10) | |
| } | |
| const xs = Array.from({ length: 100_000 }, () => random()) | |
| function isEven(x) { | |
| return x % 2 === 0 | |
| } | |
| function times2(x) { | |
| return 2 * x | |
| } | |
| }; | |
| suite.add("1", function () { | |
| //1 | |
| const ys=[] | |
| for(let i=xs.length-1;i>-1;i--){ | |
| const x=xs[i] | |
| if(!isEven(x)) { | |
| continue | |
| } | |
| ys.push(times2(x)) | |
| } | |
| }); | |
| suite.add("2", function () { | |
| //2 | |
| const ys=xs.filter(isEven).map(times2) | |
| }); | |
| suite.add("3", function () { | |
| //3 | |
| const ys=xs.reduce((acc,x)=>{ | |
| if(isEven(x)){ | |
| acc.push(times2(x)) | |
| } | |
| return acc | |
| },[]) | |
| }); | |
| 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("Untitled benchmark"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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