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Created January 28, 2020 13:02
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index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>concat arrays</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 add_items = (container, new_items) => new_items.forEach(item => container.push(item))
};
suite.add("const array_1 = [1, 2, 3, 4]", function () {
const array_1 = [1, 2, 3, 4]
const array_2 = [5, 6, 7, 8, 9]
const array_3 = [10]
const concated_array = [
...array_1,
...array_2,
...array_3
]
});
suite.add("const array_1 = [1, 2, 3, 4]", function () {
const array_1 = [1, 2, 3, 4]
const array_2 = [5, 6, 7, 8, 9]
const array_3 = [10]
array_2.forEach(item => array_1.push(item))
array_3.forEach(item => array_1.push(item))
});
suite.add("const array_1 = [1, 2, 3, 4]", function () {
const array_1 = [1, 2, 3, 4]
const array_2 = [5, 6, 7, 8, 9]
const array_3 = [10]
array_1.splice(array_1.length, 0, ...array_2)
array_1.splice(array_1.length, 0, ...array_3)
});
suite.add("const array_1 = [1, 2, 3, 4]", function () {
const array_1 = [1, 2, 3, 4]
const array_2 = [5, 6, 7, 8, 9]
const array_3 = [10]
const concated_array = array_1.concat(array_2).concat(array_3)
});
suite.add("const array_1 = [1, 2, 3, 4]", function () {
const array_1 = [1, 2, 3, 4]
const array_2 = [5, 6, 7, 8, 9]
const array_3 = [10]
array_2.push(...array_2)
array_3.push(...array_3)
});
suite.add("var array_1 = [1, 2, 3, 4];", function () {
var array_1 = [1, 2, 3, 4];
var array_2 = [5, 6, 7, 8, 9];
var array_3 = [10];
add_items(array_1, array_2)
add_items(array_1, array_3)
});
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("concat arrays");
console.log(new Array(30).join("-"));
suite.run();
});
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