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Map/filter vs. reduce #jsbench #jsperf (https://jsbench.github.io/#ce766dceea03e522cc2d72ba25c63ab7) #jsbench #jsperf
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Map/filter vs. reduce #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>
Raw
suite.js
"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 items = [
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
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{ name: 'C' },
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{ name: 'A' },
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{ name: 'A' },
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{ name: 'A' },
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{ name: 'A' },
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{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
{ name: 'A' },
{ name: 'B' },
{ name: 'C' },
{ name: 'D' },
];
};
suite.add("const a = {}", function () {
const a = {}
items.forEach((item) => {
a[item.name] = item.key;
})
});
suite.add("const a = items.reduce(", function () {
const a = items.reduce(
(acc, item) => {
acc[item.name] = item.key;
return acc;
},
{},
);
});
suite.add("const a = Object.fromEntries(items.map(item => [item.name, item.key]))", function () {
const a = Object.fromEntries(items.map(item => [item.name, item.key]))
});
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("Map/filter vs. reduce #jsbench #jsperf");
console.log(new Array(30).join("-"));
suite.run();
});
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