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forEach v/s map speed test (https://jsbench.github.io/#6ff0c668d4b07112b9ea11ff19cdf59f) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>forEach v/s map speed test</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; | |
| suite.add("let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];", function () { | |
| let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]; | |
| arr.map(num => { | |
| let mul = num * 2; | |
| }); | |
| }); | |
| suite.add("let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];", function () { | |
| let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]; | |
| arr.forEach(num => { | |
| let mul = num * 2; | |
| }); | |
| }); | |
| 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("forEach v/s map speed test"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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