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Last active August 7, 2017 09:48
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index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Iteration stuff</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 nodeExtractionSpecs = [
{
isValid: obj => obj.type === 'foo',
toNode: obj => ({ key: obj.id, data: obj }),
},
{
isValid: obj => obj.type === 'bar',
toNode: obj => ({ key: obj.otherId, data: obj }),
},
];
const objs = [];
for (let i = 0; i < 10000; i++) {
objs.push({
type: !(i % 3) ? 'foo' : 'bar',
[!(i % 3) ? 'id' : 'otherId']: `obj_${i}`,
});
}
let nodes = new Array(10000);
};
suite.add("nodeExtractionSpecs.forEach(spec => {", function () {
nodeExtractionSpecs.forEach(spec => {
objs.forEach(obj => {
if (spec.isValid(obj)) {
nodes.push(spec.toNode(obj));
}
});
});
});
suite.add("for (let j = 0; j < nodeExtractionSpecs.length; j++) {", function () {
for (let j = 0; j < nodeExtractionSpecs.length; j++) {
const spec = nodeExtractionSpecs[j];
for (let k = 0; k < objs.length; k++) {
if (spec.isValid(objs[k])) {
nodes[k] = spec.toNode(objs[k]);
}
}
}
});
suite.add("for (const spec of nodeExtractionSpecs) {", function () {
for (const spec of nodeExtractionSpecs) {
for (const obj in objs) {
if (spec.isValid(obj)) {
nodes.push(spec.toNode(obj));
}
}
}
});
suite.add("for (let j = nodeExtractionSpecs.length; j--;) {", function () {
for (let j = nodeExtractionSpecs.length; j--;) {
let spec = nodeExtractionSpecs[j];
for (let k = objs.length; k--;) {
if (spec.isValid(objs[k])) {
nodes[k] = spec.toNode(objs[k]);
}
}
}
});
suite.add("let j = nodeExtractionSpecs.length;", function () {
let j = nodeExtractionSpecs.length;
while (j--) {
let spec = nodeExtractionSpecs[j];
let k = objs.length;
while (k--) {
let obj = objs[k];
if (spec.isValid(obj)) {
nodes[k] = spec.toNode(obj);
}
}
}
});
suite.add("for (let j = 0; j < nodeExtractionSpecs.length; j++) {", function () {
for (let j = 0; j < nodeExtractionSpecs.length; j++) {
const spec = nodeExtractionSpecs[j];
for (let k = 0; k < objs.length; k++) {
if (spec.isValid(objs[k])) {
nodes.push(spec.toNode(objs[k]));
}
}
}
});
suite.add("for (let j = nodeExtractionSpecs.length; j--;) {", function () {
for (let j = nodeExtractionSpecs.length; j--;) {
let spec = nodeExtractionSpecs[j];
for (let k = objs.length; k--;) {
if (spec.isValid(objs[k])) {
nodes.push(spec.toNode(objs[k]));
}
}
}
});
suite.add("let j = nodeExtractionSpecs.length;", function () {
let j = nodeExtractionSpecs.length;
while (j--) {
let spec = nodeExtractionSpecs[j];
let k = objs.length;
while (k--) {
let obj = objs[k];
if (spec.isValid(obj)) {
nodes.push(spec.toNode(obj));
}
}
}
});
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("Iteration stuff");
console.log(new Array(30).join("-"));
suite.run();
});
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