Develop Reference

RequireJS sporadic failure

I'm working on a Magento2 site. Magento2 uses requirejs and the theme I'm using makes use of it as well. Part of the theme uses Owl Carousel. The code used to load the carousel was originally
require(['jquery', 'owl.carousel/owl.carousel.min'], function($) {
$("#banner-slider-demo-1").owlCarousel({
// carousel settings
});
});
However I noticed sometimes when I load the homepage (where the carousel is used) the carousel doesn't display, and there are errors in the console
Uncaught TypeError: $(...).owlCarousel is not a function
Thinking jQuery might not be loaded, I changed the require code to serialize the requirements
require(['jquery'], function($) {
require(['owl.carousel/owl.carousel.min'], function () {
$("#banner-slider-demo-1").owlCarousel({
// ...
but this had no effect... Sometimes the carousel loads and there are no errors, other times there are errors and it doesn't load.
Even when there is an error the carousel file has been fetched by the browser. It also seems require has loaded the carousel script per developer tools
Any idea what could be going on?

Your issue is that you are loading jQuery through a script element and through RequireJS. You have to use one method, not both.
If I run this in the console:
console.log("owlCarousel", typeof jQuery.fn.owlCarousel)
I get:
owlCarousel function
But with this:
require(["jquery"], function ($) {
console.log("owlCarousel", typeof $.fn.owlCarousel);
})
I get:
owlCarousel undefined
And if you try require(["jquery"], function ($) { console.log("equal", $ === window.jQuery); }) you'll get equal false. So you have two instances of jQuery loaded. The code that uses RequireJS to access jQuery gets a version without .owlCarousel. That's because Owl Carousel installed itself on window.jQuery.
If you must load jQuery through script for some reason, you should move the script element that loads it before you load RequireJS. (You should do this for all scripts you load that you want to load with script and that are AMD-aware.) Then for RequireJS, you should just define this fake module:
define("jquery", function () {
return jQuery;
});
This makes it so that when RequireJS loads jQuery it just uses the jQuery already defined in the global space. The ideal place for this fake module would be just before you configure RequireJS.
While you're at it you should define a shim for owl.carousel/owl.carousel.min:
`owl.carousel/owl.carousel.min`: ['jquery']
This way there's no need to nest the call to load owl.carousel/owl.carousel.min inside a call to load jquery. You can just do what you were trying initially:
require(['jquery', 'owl.carousel/owl.carousel.min'], function($) {
$("#banner-slider-demo-1").owlCarousel({
// carousel settings
});
});

Call JavaScript for custom added class for Wordpress WPBakery Visual Composer Post Grid?

I added a class (format-date) to a custom field in Post Grid but I can't seem to apply any JS to it.
<div class="vc_gitem-post-meta-field-_EventStartDate format-date vc_gitem-align-left"> 2015-10-08 07:30:00</div>
Simple jQuery test:
$('.format-date').addClass('test')
Code is in the footer and I've tried $(window).load(function() $(document).ready(function(). No JS errors in Fire Bug.
I suspect it's due to the loading animation applied to the posts. How can I call my JS after this has loaded?

This worked:
$(document).ajaxStop(function() {
// your code here
});

Getting Uncaught TypeError: undefined is not a function in nivo slider.js

I am trying to put nivo-slider on my drupal home page. Although all images are showing but they are not sliding and when I check consol, I see an error in nivo-slider.js file i.e.
"Uncaught TypeError: undefined is not a function"
My nivo-slider.js code is-
(function ($) {
Drupal.behaviors.nivoSlider = {
attach: function (context, settings) {
// Initialize the slider
$('#slider').nivoSlider({ *//here I am getting error mentioned above*
'effect': Drupal.settings.nivo_slider.effect, // Specify sets like: 'fold,fade,sliceDown'
'slices': Drupal.settings.nivo_slider.slices, // For slice animations
'boxCols': Drupal.settings.nivo_slider.boxCols, // For box animations
'boxRows': Drupal.settings.nivo_slider.boxRows, // For box animations
'animSpeed': Drupal.settings.nivo_slider.animSpeed, // Slide transition speed
'pauseTime': Drupal.settings.nivo_slider.pauseTime, // How long each slide will show
'startSlide': Drupal.settings.nivo_slider.startSlide, // Set starting Slide (0 index)
'directionNav': Drupal.settings.nivo_slider.directionNav, // Next & Prev navigation
'directionNavHide': Drupal.settings.nivo_slider.directionNavHide, // Only show on hover
'controlNav': Drupal.settings.nivo_slider.controlNav, // 1,2,3... navigation
'controlNavThumbs': Drupal.settings.nivo_slider.controlNavThumbs, // Use thumbnails for Control Nav
'pauseOnHover': Drupal.settings.nivo_slider.pauseOnHover, // Stop animation while hovering
'manualAdvance': Drupal.settings.nivo_slider.manualAdvance, // Force manual transitions
'prevText': Drupal.settings.nivo_slider.prevText, // Prev directionNav text
'nextText': Drupal.settings.nivo_slider.nextText, // Next directionNav text
'randomStart': Drupal.settings.nivo_slider.randomStart, // Start on a random slide
'beforeChange': Drupal.settings.nivo_slider.beforeChange, // Triggers before a slide transition
'afterChange': Drupal.settings.nivo_slider.afterChange, // Triggers after a slide transition
'slideshowEnd': Drupal.settings.nivo_slider.slideshowEnd, // Triggers after all slides have been shown
'lastSlide': Drupal.settings.nivo_slider.lastSlide, // Triggers when last slide is shown
'afterLoad': Drupal.settings.nivo_slider.afterLoad // Triggers when slider has loaded
});
}
};
}(jQuery));
Help me to sought out this error..thanks!!

Include jquery.js main file in header before any js
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
When you use two different versions of jquery (which is not recommended), you can use
jQuery.noConflict
api.jquery.com/jQuery.noConflict/

I had encountered a similar problem before. This issue can be fixed by making use of Jquery Update module in Drupal 7 & setting the version of jquery library to 1.9 & above.
Do let me know in case of any doubts

Also please note that in Drupal you should never add Jquery library explicitly because Drupal core by default adds a jquery library.
When you try to add a jquery.js in the head
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
There will be 2 jquery libraries now & which will conflict.
So we need to use jquery update module to upgrade the library

Another likely candidate is referring to jQuery with $ (dollar):
$(document).ready(function(){
// Target your .container, .wrapper, .post, etc.
$("#main-content").fitVids();
});
If you instead use the no-conflict reference in your script, as below, this may fix the error
jQuery(document).ready(function(){
// Target your .container, .wrapper, .post, etc.
jQuery("#main-content").fitVids();
});

I just ran into some issues configuring Nivo View Slider on Drupal 7.
I didn't read the module's documentation at first but it looks like Nivo Slider's library isn't included in the package, you need to upload it manually to your server.
Here is the documentation : https://www.drupal.org/project/views_nivo_slider
To sum it up :
install/enable Library API
download Nivo Slider libs from https://github.com/gilbitron/Nivo-Slider/downloads
unzip the archive to sites/all/libraries/nivo-slider
At step 2, you'll have to choose between version 2.x or 3.x
On the module's project page, it says that version 3.x might be broken on Google Chrome, I didn't have any issue myself...

How to use Phonegap SoftKeyboard Plugin for Android?

I am developing an Android application using Phonegap. I need to make the softkeyboard appear programatically. I am using the SoftKeyboard plugin which is found here. Can anyone tell me how to properly include this plugin & make it work? I have tried the tutorial found on the Phonegap Wiki, but the plugin is not working.
[Update] I have added the plugin to the path
com/zenexity/SoftKeyBoardPlugin/SoftKeyBoard.java
Updated plugins.xml and included
<plugin name="SoftKeyBoard" value="com.zenexity.SoftKeyBoardPlugin.SoftKeyBoard"/>
Then in the www folder added softkeyboard.js, and the following in index.html
plugins.SoftKeyBoard.show(function () {
// success
},function () {
// fail
});
But nothing happens, the keyboard is not displaying..

This is how I got SoftKeyBoard working in my application.
DroidGap Side
create /src/com/phonegap/plugins/SoftKeyboard with provided file SoftKeyBoard.java inside
add to /res/xml/plugins.xml:
< plugin name="SoftKeyBoard" value="com.phonegap.plugins.SoftKeyboard.SoftKeyBoard" />
/assets/www Side
add provided file softkeyboard.js to /assets/www/js
add to index.html in the head where your other javascripts are included after you have included the phonegap javascript:
< script type="text/javascript" charset="utf-8" src="js/softkeyboard.js"></script>
You can then call the following if you are on device or using something like Ripple:
window.plugins.SoftKeyBoard.show(function () {
// success
},function () {
// fail
});
or something like this if you want to make sure the namespace is available, which will prevent undefined problems:
((((window || {}).plugins || {}).SoftKeyBoard || {}).show || function(){})();
I think maybe where you went wrong was not including the js/softkeyboard.js in your head of index.html.
Hope this helps you

For the latest version of PhoneGap (Apache Cordova 2.1.0) I had to do the following:
Installed these plugin sources which reflected the project name change:
https://github.com/originalgremlin/phonegap-plugins/tree/master/Android/SoftKeyboard
Copy softkeyboard.js to your javascript library directory.
Copy SoftKeyBoard.java to src/org/apache/cordova/plugins/SoftKeyBoard.java
Put this in your HTML file, after including the cordova.js file:
<script src="/path/to/javascripts/softkeyboard.js"></script>
Add this to the bottom of the res/xml/config.xml plugins section:
<plugin name="SoftKeyBoard" value="org.apache.cordova.plugins.SoftKeyBoard" />
Now, assuming this HTML:
<button id="keyboard">Toggle Keyboard</button>
This jQuery should do something useful:
var softkeyboard = window.cordova.plugins.SoftKeyBoard;
$('#keyboard').toggle(softkeyboard.show, softkeyboard.hide);

Try it like this:
SoftKeyBoard.show(function () {
// success
},function () {
// fail
});
The code in the JS file does not put it in the "plugins" namespace.
Orjust use the PhoneGap plugins full namespace:
window.plugins.SoftKeyBoard.show(function () {
// success
},function () {
// fail
});

Cordova 3.0 + JQM 1.3.2: Changing "fullscreen" to "false" in config.xml fixed the "adjustPan" and prevented my inputs from being covered when the keyboard displayed. However, blur() would not close the keyboard and this plugin worked wonderfully.
For the almost latest version of phonegap:
Add SoftKeyBoard.java to your app package in src
Add softkeyboard.js to assets/www
Update config.xml with:
<feature name="SoftKeyBoard"><param name="android-package" value="com.yourAppPackage" /></feature>
Call your plugin: plugins.SoftKeyBoard.hide(function() {//success }, function() {//fail });

go through the link. here is the full project:--
SoftKeyboardPlugin by Simon McDonald

$("#slider_range").slider is not a function

Ok, I have included the google api libraries for Jquery UI, like so:
<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js' ></script>
Now I have a script that updates some spans and a hidden input on document slide and not only, on document ready:
<script type="text/javascript">
$(document).ready(function()
{
var slider=$('#slider_range').slider({
range:true,
min:0,
max:5,
step:1,
values:[0,3],
slide:function(event,ui)
{
$('#level').val(ui.values[0]+'-'+ui.values[1]);
$('#low').html(ui.values[0]);
$('#high').html(ui.values[1]);
}
});
var s=slider;
if(s.slider("values",0)==s.slider("values",1))
{
$('#level').val(s.slider("values",0));
$('#low').html(s.slider("values",0));
$('#high').html(s.slider("values",0));
}
else
{
$('#level').val(s.slider("values",0)+'-'+s.slider("values",1));
$('#low').html(s.slider("values",0));
$('#high').html(s.slider("values",1));
}
});
</script>
The ideea is that on a page it shows the slider and on another not.
The error message I get from Firebug is this:
$("#slider_range").slider is not a function
And points to the line
slide:function(event,ui)
What could be causing this? Why on a page the slider can be seen and on another (which uses the same template that loads the above) can`t?
Please help!

There were two differing jquery libraries included on the second page.

I just had the same error while i used the foundation framework from zurb along with jquery ui slider.
Problem #1:
the foundation framework 3.2.4 already delivers jquery 1.8.1 and i tried to include my own copy of jquery 1.9 just before the foundation files. (= duplicate jquery inclusion)
Problem #2:
the order of my inclusions. jquery ui needs to be included AFTER the foundation framework files.