astromac’s gists

astromac / binarytreesearch.js

Last active July 17, 2020 19:49

Binary Tree Search

	/**
	see https://codepen.io/chrisbfusion/pen/oNbyppO

	sample tree visual
	30
	\|
	-------
	\| \|
	8 52
	\|

astromac / absoluteElementPosition.js

Created June 18, 2020 19:11

	/* Returns the absolute page position
	* of a given element.
	*/
	const absoluteElementPosition = node => {
	if (isEmpty(node)) return null
	let element = node
	let left = 0
	let top = 0

	do {

astromac / findParentElement.js

Last active March 4, 2020 14:00

Traverse through DOM

	/* Locates the first parent element
	* that has a given attribute.
	*/
	const findParentElement = (node, attribute) => {
	if (isEmpty(node) \|\| isEmpty(attribute)) return null;
	let element = node;

	/* eslint-disable no-cond-assign, no-empty */
	while (
	(element = element.parentElement) &&

astromac / isEmpty.js

Last active April 20, 2021 14:15

isEmpty

	/** Determines if passed value is empty or not.
	* Works on multiple data types.
	**/
	const isEmpty = data => {
	let count = 0;
	if (typeof (data) === 'number' \|\| typeof (data) === 'boolean') { return false; }
	if (typeof (data) === 'undefined' \|\| data === null) { return true; }
	if (typeof (data.length) !== 'undefined') { return data.length === 0; }
	Object.keys(data).forEach(() => { count += 1; });
	return count === 0;

astromac / cookies.js

Last active August 29, 2015 14:07

Get / Set Cookie

	var setCookie = function (cookieName, cookieValue, expireDays) {
	var date = new Date(),
	expires = '';

	date.setTime(date.getTime() + (expireDays * 24 * 60 * 60 * 1000));
	expires = 'expires=' + date.toUTCString();
	document.cookie = cookieName + '=' + cookieValue + '; ' + expires + '; ' + 'domain=' + document.location.hostname + '; path=/';
	};

	var getCookie = function(cookieName) {

astromac / Bootstrap Template

Last active January 3, 2016 14:59

Starting HTML5 Bootstrap template

	<!DOCTYPE html>
	<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
	<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
	<!--[if IE 8]> <html class="no-js lt-ie9"> <![endif]-->
	<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->
	<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
	<title></title>
	<meta name="description" content="">

astromac / Unhide Inputs

Last active January 3, 2016 03:39

Scrolls form inputs when they are hidden by a fixed header or footer

	// Make sure focused elements aren't hidden by fixed positioned header or footer
	function unhideInput(formelement) {
	formelement.onfocus = function () {
	var paddingheight = 30;
	var headerheight = document.getElementsByTagName('header')[0].offsetHeight;
	var footerheight = document.getElementsByTagName('footer')[document.getElementsByTagName('footer').length - 1].offsetHeight;
	var viewportheight = window.innerHeight;
	var elementpos = this.getBoundingClientRect();

	if ((elementpos.top <= (headerheight + paddingheight)) \|\| (elementpos.bottom >= (viewportheight - footerheight))) {

astromac / Bootstrap Modal Video Player html

Created January 8, 2014 23:26

HTML5 video in a Bootstrap modal window.

astromac / Bootstrap Modal Video Player js

Created January 8, 2014 23:21

Plays selected video element in a Bootstrap modal window.

astromac / Remove no-js

Created January 8, 2014 23:00

Removes no-js class

-// Remove no-js class
-var tag = document.getElementsByTagName('html')[0];
-if (tag.className.length > 0 && /no-js/i.test(tag.className)) {
-	tag.className = tag.className.replace(/\s?no-js\s?/i, '');
-} else {
-	tag.className = '';
-}

	<div class="modal-trigger">
	<canvas></canvas>
	<video preload="auto" controls="controls" poster="img/why-autologel-poster.png">
	<source src="media/why-autologel.mp4" type='video/mp4'>
	<source src="media/why-autologel.webm" type='video/webm'>
	</video>
	</div>
	<!-- Modal Window -->
	<div class="modal fade" id="modal-window" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
	<div class="modal-dialog">

	// Play very small videos in modal box
	if ($(window).width() > 750) {
	var allvideos = $('video');

	// Hide controls for very small videos
	for (var i = 0; i < allvideos.length; i++) {
	if ($(allvideos[i]).width() < 470) {
	$(allvideos[i]).removeAttr('controls');
	// Insert poster image for IE 9
	if ($('html').hasClass('IE-9')) {