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functor vs local variable #jsbench #jsperf (https://jsbench.github.io/#6d9fb88c091a5be96b554f041270b0b2) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>functor vs local variable #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 () { | |
| const functor = (value) => { | |
| return { | |
| map: (fn) => functor(fn(value)), | |
| value: () => value | |
| } | |
| } | |
| class Functor { | |
| constructor(value) { | |
| this.value | |
| } | |
| map(fn) { | |
| return new Functor(fn(this.value)) | |
| } | |
| value() { | |
| return this.value | |
| } | |
| } | |
| const fn1 = (value) => value +1 | |
| const fn2 = (value) => value *2 | |
| }; | |
| suite.add("const temp_value = fn1(10)", function () { | |
| const temp_value = fn1(10) | |
| fn2(temp_value) | |
| }); | |
| suite.add("functor(10)", function () { | |
| functor(10) | |
| .map(fn1) | |
| .map(fn2) | |
| .value() | |
| }); | |
| suite.add("new Functor(10)", function () { | |
| new Functor(10) | |
| .map(fn1) | |
| .map(fn2) | |
| .value() | |
| }); | |
| 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("functor vs local variable #jsbench #jsperf"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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