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@bholzer
Created June 30, 2021 23:00
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Object iteration</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 () {
const object = new Array(100000000).reduce((memo,i) => ({...memo, [Object.keys(memo).length]: 0 }), {})
};
suite.add("Object.keys(object).forEach(k => object[k]);", function () {
Object.keys(object).forEach(k => object[k]);
});
suite.add("for (const key of Object.keys(object)) {", function () {
for (const key of Object.keys(object)) {
object[key]
}
});
suite.add("Object.entries(object).forEach(([k,v]) => v);", function () {
Object.entries(object).forEach(([k,v]) => v);
});
suite.add("for (const [k,v] of Object.entries(object)) {", function () {
for (const [k,v] of Object.entries(object)) {
v
}
});
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("Object iteration");
console.log(new Array(30).join("-"));
suite.run();
});
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