Skip to content

Instantly share code, notes, and snippets.

@jridgewell

jridgewell/index.html

Last active February 26, 2021 20:03
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save jridgewell/02d7e1ba5660c7ab3e1d6af2a75ae434 to your computer and use it in GitHub Desktop.
Save jridgewell/02d7e1ba5660c7ab3e1d6af2a75ae434 to your computer and use it in GitHub Desktop.
Download ZIP
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>https://twitter.com/fenomas/status/1364927834901291011 #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 () {
var N = 2e6;
function A() {
var count = 0;
for (var i = 0; i < N; i++) count++;
if (false) console.log(count);
return count;
}
function B() {
var count = 0;
for (var i = 0; i < N; i++) count++;
if (false) setTimeout(() => console.log(count), 100);
return count;
}
function C() {
var count = 0;
for (var i = 0; i < N; i++) count++;
if (false) setTimeout((count) => console.log(count), 100, count);
return count;
}
};
suite.add("if (false) console.log(count);", function () {
// if (false) console.log(count);
A();
});
suite.add("if (false) setTimeout(() => console.log(count), 100)", function () {
// if (false) setTimeout(() => console.log(count), 100)
B();
});
suite.add("if (false) setTimeout((c) => console.log(c), 100, count)", function () {
// if (false) setTimeout((c) => console.log(c), 100, count)
C();
});
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("https://twitter.com/fenomas/status/1364927834901291011 #jsbench #jsperf");
console.log(new Array(30).join("-"));
suite.run();
});
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment