jridgewell’s gists

jridgewell / index.html

Last active April 30, 2020 22:03

Subclassing custom elements (https://jsbench.github.io/#9554bc2ae3e2234ba0b2e0bd11fc755f) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Subclassing custom elements</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<style>
	body {
	font-size: 20px;
	}

jridgewell / index.html

Created March 11, 2020 22:04

Grabbing first part of a string (http://jsbench.github.io/#94a5176ad6fb86ed7aaeca9b9e08af53) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Grabbing first part of a string</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>

jridgewell / index.html

Last active January 25, 2020 08:30

Fastest limited size lookup of integers (base64 lookup) #jsbench #jsperf (https://jsbench.github.io/#f5a12ed2e457ae2f8b9a874736e54ee0) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Fastest limited size lookup of integers (base64 lookup) #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>

jridgewell / index.html

Created January 25, 2020 08:13

Looping over a string (https://jsbench.github.io/#6545ad45e9ba2802d2b89feda4213a28) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Looping over a string</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>

jridgewell / index.html

Created January 23, 2020 03:46

Searching strings for any of two special chars (https://jsbench.github.io/#31bf76ea5fa539b60fb1b80b321916d3) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Searching strings for any of two special chars</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>

jridgewell / test.js

Last active December 3, 2019 23:49

Non-writable super-super prototype descriptor with TypedArraySet

	"use strict";
	const o = { __proto__: new Int32Array(10) };
	Object.defineProperty(Object.prototype, 1.3, {
	value: 42,
	writable: false,
	});

	o[1.3] = 1; // Does this throw?
	// If it does, then set finds the Object.prototype[1.3] PropertyDescriptor

jridgewell / index.html

Last active October 23, 2019 05:40

Removing nodes from a parent #jsbench #jsperf (https://jsbench.github.io/#7251ec1d4edb2fdab8f0d748671613f1) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Removing nodes from a parent #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>

jridgewell / weakmap.js

Created October 18, 2019 19:35

WeakMap implemented via Chrome's internal PrivateSymbol

	class WeakMap {
	#WeakMapData = %CreatePrivateSymbol('[[WeakMapData]]');

	delete(key) {
	const sym = this.#WeakMapData;
	if (!%HasProperty(key, sym)) {
	return false;
	}
	delete key[sym];
	return true;

jridgewell / index.html

Last active October 5, 2019 04:32

Summing rest vs var args (https://jsbench.github.io/#be658e0459613a031c01c1df83aca059) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Summing rest vs var args</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>

jridgewell / index.html

Created October 2, 2019 18:22

Directive Implementations: WeakMap vs Property vs Private Symbol (https://jsbench.github.io/#df58ced0052eb86792b2e996615ac5cc) #jsbench #jsperf

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Directive Implementations: WeakMap vs Property vs Private Symbol</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>

Justin Ridgewell jridgewell