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Created December 21, 2020 09:24
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shallow copy of object in different sizes (http://jsbench.github.io/#038f2e9cc1f715afa8ee89de7e02983e) #jsbench #jsperf
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>shallow copy of object in different sizes</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 init_object = (property_count) => {
const object = {}
for (let index = 0; index < property_count; index++) {
object[`property_${index}`] = {}
}
return object
}
const tiny_object = init_object(1)
const small_object = init_object(10)
const large_object = init_object(100)
const big_object = init_object(10000)
const copy_object = (object) => ({ ...object })
};
suite.add("copy_object(tiny_object)", function () {
copy_object(tiny_object)
});
suite.add("copy_object(small_object)", function () {
copy_object(small_object)
});
suite.add("copy_object(large_object)", function () {
copy_object(large_object)
});
suite.add("copy_object(big_object)", function () {
copy_object(big_object)
});
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("shallow copy of object in different sizes");
console.log(new Array(30).join("-"));
suite.run();
});
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