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Last active March 6, 2020 14:59
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strict mode efficiency comparison w/ Newtons Method (http://jsbench.github.io/#7e323ab9310ec4fc933db0883c96ce0c) #jsbench #jsperf
<!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>
"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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