devudit

// I generally use the typeof operator:

if (typeof obj.foo !== 'undefined') {
  // your code here
}
// It will return "undefined" either if the property doesn't exist or its value is undefined.


// There are other ways to figure out if a property exists on an object, like the hasOwnProperty method:

devudit

<?php
function closestLowerHigherNr($array, $nr) {
	sort($array);
	$re_arr = array('lower'=>min(current($array), $nr), 'higher'=>max(end($array), $nr), 'closest'=>$nr);
	foreach($array AS $num){
		if($nr > $num) $re_arr['lower'] = $num;
		else if($nr <= $num){
			$re_arr['higher'] = $num;
			break;
		}

devudit

/** EXAMPLE 1 ***/
var $myDialog = $('<div>My dialog text</div>').appendTo('body');
Drupal.dialog($myDialog, {
  title: 'A title',
  buttons: [{
    text: 'Close',
    click: function() {
      $(this).dialog('close');
    }
  }]

devudit

<?php
    /** If vocabulary id not exist */
    if(!\Drupal\taxonomy\Entity\Vocabulary::load($vocab_id)){

      /**
       * Create vocabulary
       * @var $vocabulary
       */
      $vocabulary = \Drupal\taxonomy\Entity\Vocabulary::create([
        'vid' => $vocab_id,

devudit

<?php

namespace Drupal\feeds_sftp_fetcher\Feeds\Fetcher;

use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Logger\LoggerChannelFactoryInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Utility\Token;
use Drupal\feeds\Exception\EmptyFeedException;
use Drupal\feeds\FeedInterface;

devudit

<?xml version='1.0' encoding='UTF-8'?>
<countries>
  <country code='af' handle='afghanistan' continent='asia' iso='4'>Afghanistan</country>
  <country code='al' handle='albania' continent='europe' iso='8'>Albania</country>
  <country code='dz' handle='algeria' continent='africa' iso='12'>Algeria</country>
  <country code='as' handle='american-samoa' continent='polynesia' iso='16'>American Samoa</country>
  <country code='ad' handle='andorra' continent='europe' iso='20'>Andorra</country>
  <country code='ao' handle='angola' continent='africa' iso='24'>Angola</country>
  <country code='ai' handle='anguilla' continent='north america' iso='660'>Anguilla</country>
  <country code='aq' handle='antarctica' continent='antarctica' iso='10'>Antarctica</country>

devudit

var token = '<access_token>',
    hashtag='<tag>', // hashtag without # symbol
    num_photos = 4;
 
$.ajax({
	url: 'https://api.instagram.com/v1/tags/' + hashtag + '/media/recent',
	dataType: 'jsonp',
	type: 'GET',
	data: {access_token: token, count: num_photos},
	success: function(data){

devudit

(function ($) {
    "use strict";
    function $fixBootstrapModalPosition() {
        $(this).css('display', 'block');
        var $dialog  = $(this).find(".modal-dialog"),
            offset       = ($(window).height() - $dialog.height()) / 2,
            bottomMargin = parseInt($dialog.css('marginBottom'), 10);

        // Make sure you don't hide the top part of the modal w/ a negative margin if it's longer than the screen height, and keep the margin equal to the bottom margin of the modal
        if(offset < bottomMargin) offset = bottomMargin;

devudit

<?php

  /**
   * Utility: find term by name and vid.
   * @param null $name
   *  Term name
   * @param null $vid
   *  Term vid
   * @return int
   *  Term id or 0 if none.

devudit

<input type='text' id='text'>