ischenkodv’s gists

ischenkodv / AsyncQueue.js

Created February 28, 2015 20:17

Asynchronous queue implementation. Functions could be added to queue and executed one by one immediately, or with intervals or in the next frame (using requestAnimationFrame).

	;(function(window) {

	'use strict';

	/**
	* AsyncQueue allows you to create a queue of function to be executed via
	* setTimout that guaranteed to run in order. This can enable to run
	* process-intensive operations without locking up UI.
	*
	* @constructor

ischenkodv / joomla_json.php

Created November 30, 2014 00:35

Return JSON data from action of Joomla controller.

	/**
	* JSON response from controller's action.
	*/
	public function run( )
	{
	JFactory::getDocument()->setMimeEncoding( 'application/json' );
	JResponse::setHeader('Content-Disposition','attachment;filename="progress-report-results.json"');

	$data = array(
	'foo' => 'bar'

ischenkodv / ie_conditionals.html

Created February 11, 2014 21:11

Adding class names depending on Internet Explorer version.

	<!DOCTYPE html>
	<!--[if lt IE 7 ]> <html class="ie6" lang="en"> <![endif]-->
	<!--[if IE 7 ]> <html class="ie7" lang="en"> <![endif]-->
	<!--[if IE 8 ]> <html class="ie8" lang="en"> <![endif]-->
	<!--[if IE 9 ]> <html class="ie9" lang="en"> <![endif]-->
	<!--[if (gt IE 9)\|!(IE)]><!--> <html lang="en"> <!--<![endif]-->

	<body></body>
	</html>

ischenkodv / gist:7006705

Created October 16, 2013 12:09

Usage of SymbolPath as a google maps marker icon.

	// Usage of SymbolPath as a marker icon
	var marker = new google.maps.Marker({
	position: new google.maps.LatLng(-122.5,47.5),
	icon: {
	path: google.maps.SymbolPath.CIRCLE,
	fillOpacity: 0.5,
	fillColor: 'ff0000',
	strokeOpacity: 1.0,
	strokeColor: 'fff000',
	strokeWeight: 3.0,

ischenkodv / gist:6091581

Created July 26, 2013 19:27

CSS rotate element 5 degrees in IE

	/* 5 degree */

	filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.99, M12=-0.08, M21=0.08, M22=0.99, SizingMethod="auto expand");

	/*
	m11 = sin (5 * pi / 180)
	m12 = cos (5 * pi / 180)
	m21 = cos (5 * pi/ 180)
	m22 = sin (5 * pi / 180)
	*/

ischenkodv / Detecs CSS transform

Last active December 20, 2015 06:08

A function that detects CSS transform availability in browsers.

	function getSupportedTransform() {
	var prefixes = 'transform WebkitTransform MozTransform OTransform msTransform'.split(' ');
	for(var i = 0; i < prefixes.length; i++) {
	if(document.createElement('div').style[prefixes[i]] !== undefined) {
	return prefixes[i];
	}
	}
	return false;
	}

ischenkodv / shuffle.js

Last active December 16, 2015 18:08

Knuth shuffle

	// Implementation of Knuth shuffle: http://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle
	// More implementations: http://stackoverflow.com/questions/6274339/how-can-i-shuffle-an-array-in-javascript
	var shuffle = function(a) {
	for (var i = a.length; --i > 0;) {
	// Get random number between first and current index.
	var r = Math.floor(Math.random() * (i + 1));
	// Swap random with current index values.
	var d = a[r];
	a[r] = a[i];
	a[i] = d;

ischenkodv / chain.js

Last active December 14, 2015 22:19

Underscore.js chaining

	// Compose function
	var cleanArray = _.compose(_.compact, _.uniq, _.flatten);
	result = cleanArray(lottery);

	// Chainable way
	result = _.chain(lottery)
	.flatten()
	.uniq()
	.compact()
	.value()

ischenkodv / bcrypt.php

Created January 27, 2013 14:02

Usage of Zend\Crypt to generate and verify password hash.

	// Create hash
	$bcrypt = new Bcrypt();
	$bcrypt->setSalt('abcdefghijklmnopqrstufwxyz');
	$password = 'dima';
	$hash = $bcrypt->create($password);

	// Verify password
	if ($bcrypt->verify($password, $hash)) {
	echo "And there was much rejoicing";
	} else {

ischenkodv / jquery_checkbox_checked.js

Created November 10, 2012 23:42

Find if input is checked

var isChecked = $('input[type="checkbox"]').is(':checked')

Dmitri Ischenko ischenkodv