Stefan Sträßer Flyer53

Flyer53 / color-conversion-algorithms.js

Created December 15, 2015 15:56 — forked from mjackson/color-conversion-algorithms.js

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

Flyer53 / perceived-brightness.js

Last active December 11, 2015 18:43

Plugin for one-color https://github.com/One-com/one-color. Function calculates perceived brightness of a passed color.

	function pB (algo) {

	var algorithm = algo \|\| 'rec2020';
	var rgb = this.rgb();

	if (algorithm === 'rec2020') {

	// https://en.wikipedia.org/wiki/Rec._2020
	return ( (rgb._red * 2627) + (rgb._green * 6780) + (rgb._blue * 593) ) / 10000;

Flyer53 / getQuerystringValue.js

Created November 15, 2015 15:38

Get querystring parameter values

	/*
	By Chris Coyier
	https://css-tricks.com/snippets/javascript/get-url-variables/
	*/

	function getQueryVariable(variable)
	{
	var query = window.location.search.substring(1);
	var vars = query.split("&");
	for (var i=0;i<vars.length;i++) {

Flyer53 / jquery.alterclass.js

Last active August 29, 2015 14:21 — forked from peteboere/jquery.alterclass.js

	/**
	* jQuery alterClass plugin
	*
	* Remove element classes with wildcard matching. Optionally add classes:
	* $( '#foo' ).alterClass( 'foo-* bar-*', 'foobar' )
	*
	* Copyright (c) 2011 Pete Boere (the-echoplex.net)
	* Free under terms of the MIT license: http://www.opensource.org/licenses/mit-license.php
	*
	*/

Flyer53 / index.html

Last active December 18, 2019 09:32 — forked from insin/index.html

JavaScript function to export HTML table to MS Excel sheet

	<!DOCTYPE html>
	<html>
	<head>
	<title>tableToExcel Demo</title>
	<script src="tableToExcel.js"></script>
	</head>
	<body>

	<h1>tableToExcel Demo</h1>
	<p>Exporting the W3C Example Table</p>