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strict mode efficiency comparison w/ Newtons Method (http://jsbench.github.io/#7e323ab9310ec4fc933db0883c96ce0c) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>strict mode efficiency comparison w/ Newtons Method</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 sqrt_nonstrict = (function(){ | |
| return function(x){ | |
| function improve(y){ return (y + x/y)/2 } | |
| function satisfied(y){ return Math.abs(y*y - x) < 1e-14 /*Number.EPSILON*/ } | |
| function until(pred,f,x){ return pred(x) ? x : until(pred,f,f(x)) } | |
| return until(satisfied,improve,x) | |
| } | |
| })() | |
| var sqrt_strict = (function(){ | |
| 'use strict' | |
| return function(x){ | |
| function improve(y){ return (y + x/y)/2 } | |
| function satisfied(y){ return Math.abs(y*y - x) < 1e-14 /*Number.EPSILON*/ } | |
| function until(pred,f,x){ return pred(x) ? x : until(pred,f,f(x)) } | |
| return until(satisfied,improve,x) | |
| } | |
| })() | |
| }; | |
| suite.add("sqrt_nonstrict(1024)", function () { | |
| sqrt_nonstrict(1024) | |
| }); | |
| suite.add("sqrt_strict(1024)", function () { | |
| sqrt_strict(1024) | |
| }); | |
| 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("strict mode efficiency comparison w/ Newtons Method"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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