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Timothy Gu TimothyGu

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@TimothyGu
TimothyGu / bad-vm-module.js
Created January 15, 2018 19:37
'use strict';
const { Module } = require('vm');
process.on('unhandledRejection', p => {
process.nextTick(() => { throw p; });
});
(async () => {
const rootModule = new Module('export default 5;');
@TimothyGu
TimothyGu / bad-vm-module.js
Created January 15, 2018 19:37
'use strict';
const { Module } = require('vm');
process.on('unhandledRejection', p => {
process.nextTick(() => { throw p; });
});
(async () => {
const rootModule = new Module('export default 5;');
@TimothyGu
TimothyGu / jsdom-vm-module.js
Last active January 15, 2018 05:09
"use strict";
// Example integration of the new vm.Module API into jsdom.
const vm = require("vm");
const { URL } = require("url");
class ModuleScript {
constructor() {
this.context = null;
@TimothyGu
TimothyGu / gist:8f930b931a51999b6100cb42b1156153
Created October 8, 2017 22:17
Array with a negative length!
'use strict';
const OriginalArray = global.Array;
global.Array = function Array(...args) {
const arr = new OriginalArray(...args);
let length = arr.length;
return new Proxy(arr, {
set(target, propKey, value, Receiver) {
if (propKey === 'length') {
@TimothyGu
TimothyGu / index.html
Created April 19, 2017 08:05
64bit comparison (https://jsbench.github.io/#ae4e21e34182f589454f368be41bd56e) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>64bit comparison</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>
@TimothyGu
TimothyGu / index.html
Created January 15, 2017 18:40
for-of loop vs forEach (https://jsbench.github.io/#cec5fd6009b622c72311e8f447e101be) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>for-of loop vs forEach</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>
@TimothyGu
TimothyGu / index.pug
Created August 22, 2016 08:21
extend layout.jade
block content
p Content
@TimothyGu
TimothyGu / package.json
Last active August 11, 2016 20:18
{
"name": "posthtml-pug",
"version": "1.0.0",
"description": "PostHTML Pug parser",
"main": "index.js",
"dependencies": {
"constantinople": "^3.1.0",
"isobject": "^2.1.0",
"object-assign": "^4.1.0",
"pug": "^2.0.0-beta5",
@TimothyGu
TimothyGu / index.html
Created August 2, 2016 22:49 — forked from RubaXa/index.html
for-in vs. Object.keys (uncached) (http://jsbench.github.io/#5905cad9488ab4d470ad7a5818aebc2f) #jsbench #jsperf
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>for-in vs. Object.keys (uncached)</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>
@TimothyGu
TimothyGu / gist:fe81424b19bc5ffd1310
Created January 18, 2016 23:48
-20 ~9.53674\times10^-7 ~1.90734\times10^-6 ~1.05879\times10^-22 ~2.11758\times10^-22
-17 ~7.62939\times10^-6 ~1.52587\times10^-5 ~8.47032\times10^-22 ~1.69406\times10^-21
-14 ~6.10351\times10^-5 ~1.22070\times10^-4 ~6.77626\times10^-21 ~1.35525\times10^-20
-11 ~4.88281\times10^-4 ~9.76562\times10^-4 ~5.42101\times10^-20 ~1.08420\times10^-19
-8 ~3.90625\times10^-3 ~7.81249\times10^-3 ~4.33680\times10^-19 ~8.67361\times10^-19
-5 ~3.12500\times10^-2 ~6.24999\times10^-2 ~3.46944\times10^-18 ~6.93889\times10^-18
-2 ~2.50000\times10^-1 ~4.99999\times10^-1 ~2.77555\times10^-17 ~5.55111\times10^-17
1 ~2.00000\times10^0 ~3.99999\times10^0 ~2.22044\times10^-16 ~4.44089\times10^-16
4 ~1.60000\times10^1 ~3.19999\times10^1 ~1.77635\times10^-15 ~3.55271\times10^-15
7 ~1.28000\times10^2 ~2.55999\times10^2 ~1.42108\times10^-14 ~2.84217\times10^-14