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//
// Regular Expression for URL validation
//
// Author: Diego Perini
// Created: 2010/12/05
// Updated: 2018/09/12
// License: MIT
//
// Copyright (c) 2010-2018 Diego Perini (http://www.iport.it)
//
@mudge
mudge / eventemitter.js
Last active June 2, 2024 15:36
A very simple EventEmitter in pure JavaScript (suitable for both node.js and browsers).
/* Polyfill indexOf. */
var indexOf;
if (typeof Array.prototype.indexOf === 'function') {
indexOf = function (haystack, needle) {
return haystack.indexOf(needle);
};
} else {
indexOf = function (haystack, needle) {
var i = 0, length = haystack.length, idx = -1, found = false;
@leipert
leipert / detectBrowserLanguage.js
Last active March 11, 2024 02:10 — forked from anonymous/detectBrowserLanguage.js
Detect browser language in javascript (utilizing lodash)
// These window.navigator contain language information
// 1. languages -> Array of preferred languages (eg ["en-US", "zh-CN", "ja-JP"]) Firefox^32, Chrome^32
// 2. language -> Preferred language as String (eg "en-US") Firefox^5, IE^11, Safari,
// Chrome sends Browser UI language
// 3. browserLanguage -> UI Language of IE
// 4. userLanguage -> Language of Windows Regional Options
// 5. systemLanguage -> UI Language of Windows
var browserLanguagePropertyKeys = ['languages', 'language', 'browserLanguage', 'userLanguage', 'systemLanguage'];
@xem
xem / readme.md
Last active May 11, 2024 23:57
Maths & trigonometry cheat sheet for 2D & 3D games

Conventions

  • A = [xA, yA] is a point on the 2D plane. Same for B, C, ...
  • lengths are in any unit (ex: pixels)
  • code snippets are in JavaScript

Degrees to radians

angleRad = angleDeg * Math.PI / 180;

@guilhermepontes
guilhermepontes / shuffle.js
Last active October 29, 2023 01:41
Shuffle Array - JavaScript ES2015, ES6
// original gist
const shuffleArray = arr => arr.sort(() => Math.random() - 0.5);
// fully random by @BetonMAN
const shuffleArray = arr => arr
.map(a => [Math.random(), a])
.sort((a, b) => a[0] - b[0])
.map(a => a[1]);
shuffleArray([1, 2, 3]) //[3, 1, 2]
@robertpainsi
robertpainsi / commit-message-guidelines.md
Last active June 12, 2024 14:34
Commit message guidelines

Commit Message Guidelines

Short (72 chars or less) summary

More detailed explanatory text. Wrap it to 72 characters. The blank
line separating the summary from the body is critical (unless you omit
the body entirely).

Write your commit message in the imperative: "Fix bug" and not "Fixed
bug" or "Fixes bug." This convention matches up with commit messages
@straker
straker / README.md
Last active June 9, 2024 11:57
Basic Snake HTML and JavaScript Game

Basic Snake HTML and JavaScript Game

Snake is a fun game to make as it doesn't require a lot of code (less than 100 lines with all comments removed). This is a basic implementation of the snake game, but it's missing a few things intentionally and they're left as further exploration for the reader.

Further Exploration

  • Score
  • When the snake eats an apple, the score should increase by one. Use context.fillText() to display the score to the screen
@yangshun
yangshun / using-eslint-with-prettier.md
Last active March 22, 2023 13:50
Comparison between tools that allow you to use ESLint and Prettier together.
prettier-eslint eslint-plugin-prettier eslint-config-prettier
What it is A JavaScript module exporting a single function. An ESLint plugin. An ESLint configuration.
What it does Runs the code (string) through prettier then eslint --fix. The output is also a string. Plugins usually contain implementations for additional rules that ESLint will check for. This plugin uses Prettier under the hood and will raise ESLint errors when your code differs from Prettier's expected output. This config turns off formatting-related rules that might conflict with Prettier, allowing you to use Prettier with other ESLint configs like eslint-config-airbnb.
How to use it Either calling the function in your code or via [prettier-eslint-cli](https://github.co
@hofmannsven
hofmannsven / README.md
Created December 6, 2017 00:32
Increase key repeat rate on macOS

Increase key repeat rate on macOS

Settings: System Preferences » Keyboard » Key Repeat/Delay Until Repeat

Use the commands below to increase the key repeat rate on macOS beyond the possible settings via the user interface. The changes aren't applied until you restart your computer.

Source: https://apple.stackexchange.com/a/83923

@robertvunabandi
robertvunabandi / Calculator.js
Last active September 2, 2022 16:56
Simple calculator implementation using Finite State Machines.
"use strict";
class Calc {
constructor() {
this._setToBaseState();
}
_setToBaseState() {
// find static methods at end of Calc class
this.__FIRST = "0";