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function cloneOtherType(target) {
const constrFun = target.constructor;
switch (toRawType(target)) {
case "Boolean":
case "Number":
case "String":
case "Error":
case "Date":
return new constrFun(target);
case "RegExp":
@macbookandrew
macbookandrew / findStyles.js
Last active March 30, 2024 15:24
List unique CSS properties for all DOM elements
/**
* List unique CSS properties for all DOM elements
* Initially created to list unique font stacks on a page
* @see {@link http://stackoverflow.com/a/35022690/ Inspired by this StackOverflow answer}
*
* @see {@link https://gist.github.com/macbookandrew/f33dbbc0aa582d0515919dc5fb95c00a/ URL for this file}
*
* @author AndrewRMinion Design (https://andrewrminion.com)
* @version 1.1
*
@chrisjlee
chrisjlee / querySelector.polyfill.js
Created February 12, 2014 17:39
IE document.querySelector() polyfill
if (!document.querySelectorAll) {
document.querySelectorAll = function (selectors) {
var style = document.createElement('style'), elements = [], element;
document.documentElement.firstChild.appendChild(style);
document._qsa = [];
style.styleSheet.cssText = selectors + '{x-qsa:expression(document._qsa && document._qsa.push(this))}';
window.scrollBy(0, 0);
style.parentNode.removeChild(style);
@mathiasbynens
mathiasbynens / .gitignore
Last active August 7, 2024 02:26
Generating a regular expression to match valid JavaScript identifiers (like https://mathiasbynens.be/demo/javascript-identifier-regex) in Node.js
package-lock.json
node_modules
@mjackson
mjackson / color-conversion-algorithms.js
Last active July 31, 2024 11:29
RGB, HSV, and HSL color conversion algorithms in JavaScript
/**
* Converts an RGB color value to HSL. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
* Assumes r, g, and b are contained in the set [0, 255] and
* returns h, s, and l in the set [0, 1].
*
* @param Number r The red color value
* @param Number g The green color value
* @param Number b The blue color value
* @return Array The HSL representation