I'm a new JQuery programmer, here is my head code:
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
function myfunction(){
$("button").click(function(){
$("p").hide();
};
});
$(document).ready(myfunction);
</script>
this script works perfectly, but when i add these other three scripts in the page:
<script type="text/javascript" src="/file/js/prototype.js"></script>
<script type="text/javascript" src="/file/js/scriptaculous.js?load=effects,builder"></script>
<script type="text/javascript" src="/file/lightbox/js/lightbox.js"></script>
che console error gave me:
Uncaught TypeError: undefined is not a function
on '$(document).ready(myfunction);' line.
what is the error? Is a conflict problem?
jQuery defines a function called $ that you are trying to use.
prototype.js also defines a function called $ and overwrites the one from jQuery.
Use jQuery to refer to the jQuery function instead of $.
Prototype.js also uses the global $ variable. You need to make sure they don't conflict with each other by using the jQuery variable instead:
// wrap it up
(function($) {
function myfunction() {
$("button").click(function(){
$("p").hide();
});
};
$(document).ready(myfunction);
})(jQuery);
You can also just replace all jQuery $ uses with jQuery, but the method above is generally simpler to implement and maintain.
Related
I have the following references to the javascripts libraries.
<script type="text/javascript" src="jquery-1.8.2.min.js"></script>
<script type="text/javascript" src="modernizr-1.5.min.js"></script>
<script type="text/javascript" src="JavaScript-1.js"></script>
<script>jQuery.noConflict();</script>
<script>
$(document).ready(function () {
$('#tabs-2').html("<p>jQuery add </p>");
});
</script>
In the html there is a div with id tabs-2. I am not able to control the html elements using JQuery scripts. The above simple in-line script is also not working.
I have also added a custom script file which has the jQuery function as stated in this example.
Any inputs on how to add use custom JQuery libraries?
After you call
jQuery.noConflict();
you can no longer use $. You have to use jQuery, or, assign the return value from the noConflict() call to a variable and use that:
var $j = jQuery.noConflict();
$j(document).ready(function($) {
// here you can use $ again
});
To keep your custom scripts compatible whether jQuery is in no-conflict mode or not, you could wrap it with an IIFE:
(function($) {
// your code that uses '$'
})(jQuery);
See: jQuery.noConflict() documentation
The following line
<script>jQuery.noConflict();</script>
means that jQUery runs in no conflict mode. This means that $ is not aliased to the jQuery object and you have to use jQueryisntead of $
You can use the noConflict() function
<script src="other_lib.js"></script>
<script src="jquery.js"></script>
<script>
$.noConflict();
jQuery( document ).ready(function( $ ) {
// Code that uses jQuery's $ can follow here.
});
// Code that uses other library's $ can follow here.
</script>
JQuery.noConflict()
I use jQuery v1.6.4 http://code.jquery.com/jquery-1.6.4.js
and prototype.
I am trying to use the jQuery Tabs widget and it conflicts with prototype. As a result the upload button of an input isn't working.
I tried this to resolve but it doesn't seem to work.
<script type="text/javascript">
jQuery.noConflict();
_ccsjQ(function() {
_ccsjQ( "#tabs" ).tabs();
});
</script>
The funny thing is that if i press F5 the upload button works and when i refresh, doesnt work.
Easy way (IMHO) is just call jQuery.noConflict() then wrap any jQuery code in an anonymous function:
jQuery.noConflict();
(function($){
// use your standard $(...) in here
})(jQuery);
Alternatively, you need to assign jQuery a new alias if you're not going to use jQuery(...) (e.g. var jq = jQuery.noConflict(); then use jq(...)).
Example of both being used:
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/prototype.js"></script>
<script type="text/javascript">
var _cssjQ = jQuery.noConflict();
_cssjQ('.foo').css('color','#f0f');
(function($){
$('.bar').css('color','#f0f');
})(jQuery);
</script>
And the fiddle: http://jsfiddle.net/kbWah/1/
1) Define Jquery first
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
2) Add script after Jquery and Before prototype
<script>
var pjquery = jQuery.noConflict();//pjquery will represent jquery framework now on-wards
</script>
3) Now define prototype.js
<script type = "text/javascript" src = "js/prototype.js" ></script>
Now where ever jquery is to be called use pjquery instead of $ or Jquery.
OK so I have a WordPress site. It uses quite a few jQuery scripts and jQuery is loaded in the pages' headers. I have a small block of code that should simple add a class to image links. I have placed this at the bottom of the document, just before the </body> tag.
<script type="text/javascript">
$.noConflict();
$(document).ready(function () {
$('a[href*=".png"], a[href*=".gif"], a[href*=".jpg"]').addClass('zoom');
});
</script>
The script does not work and Firebug is giving me a $ is undefined error. I have checked various similar other question and the answers do not seem to help.
The source page is here: http://sergedenimes.com/2013/01/bruno-bisang-30-years-of-polaroids/
I'm sure it is another plugin causing a conflict but I would appreciate any guidance on how to solve this.
Edit: Wow thanks for the very rapid response. Seems it was an earlier plugin rendering $ undefined. Replacing with jQuery has solved.
You already did jQuery.noConflict(); earlier in your code thereby making $ undefined.
Look at line 79 of your source code.
$.noConflict(); makes the $ symbol go back to it's previous definition before jQuery was loaded. If there were no other libraries using that symbol, then it goes back to undefined. That is its purpose.
If you're going to use that and not define any other symbol as a shortcut for jQuery, then you must use jQuery as the symbol for jQuery functions instead of $.
Do this instead:
<script type="text/javascript">
$.noConflict();
jQuery(document).ready(function () {
jQuery('a[href*=".png"], a[href*=".gif"], a[href*=".jpg"]').addClass('zoom');
});
</script>
or, if you're only trying to use $ inside the .ready() handler, then you can assign it using a feature of .ready() like this:
<script type="text/javascript">
$.noConflict();
jQuery(document).ready(function ($) {
$('a[href*=".png"], a[href*=".gif"], a[href*=".jpg"]').addClass('zoom');
});
</script>
or if you have code that isn't just in the .ready() handler that wants to use $, you can redefine $ in a closure which lets other libraries use $ in their own code, but you can use it for jQuery in your jQuery code inside the closure:
<script type="text/javascript">
$.noConflict();
(function($) {
$(document).ready(function () {
$('a[href*=".png"], a[href*=".gif"], a[href*=".jpg"]').addClass('zoom');
});
$.each(whatever...)
})(jQuery);
</script>
or, you can define a new shortcut symbol for jQuery:
<script type="text/javascript">
var $$ = $.noConflict();
$$(document).ready(function () {
$$('a[href*=".png"], a[href*=".gif"], a[href*=".jpg"]').addClass('zoom');
});
</script>
Try:
<script type="text/javascript">
jQuery.noConflict();
jQuery(document).ready(function($) {
$('a[href*=".png"], a[href*=".gif"], a[href*=".jpg"]').addClass('zoom');
});
</script>
I am using both javascript and jquery code on the same html page. For some reason, the jQuery library is stopping my native javascript code from working properly.
I found this page: jQuery No Conflict that says you can use a jquery.noConflict to release $ back to javascript. However, I'm not sure how to do this?
Specifically, I'm not sure how to implement this correctly? Where does the the Jquery code go, where does the JS code go?
My code is below:
<script type="text/javascript">
$.noConflict();
// Code that uses other library's $ can follow here.
</script>
jQuery.noConflict will reset the $ variable so it's no longer an alias of jQuery. Aside from just calling it once, there's not much else you really need to do. Though, you can create your own alias with the return value, if you'd like:
var jq = jQuery.noConflict();
And, generally, you want to do this right after including jQuery and any plugins:
<script type="text/javascript" src="/path/to/jquery.js"></script>
<script type="text/javascript" src="/path/to/jquery-plugin.js"></script>
<script type="text/javascript">
jQuery.noConflict();
// Code that uses other library's $ can follow here.
</script>
<script type="text/javascript" src="/path/to/prototype.js"></script>
You can also go one step further and free up jQuery with noConflict(true). Though, if you take this route, you'll definitely want an alias as neither $ nor jQuery will probably be what you want:
var jq = jQuery.noConflict(true);
I think this last option is mostly used for mixing versions of jQuery, particularly for out-dated plugins when you want to update jQuery itself:
<script type="text/javascript" src="jquery-1.4.4.js"></script>
<script type="text/javascript" src="jquery-older-plugin.js"></script>
<script type="text/javascript">
var jq144 = jQuery.noConflict(true);
</script>
<script type="text/javascript" src="jquery-1.6.4.js"></script>
<script type="text/javascript" src="jquery-newer-plugin.js"></script>
By default, jquery uses the variable jQuery and the $ is used for your convenience. If you want to avoid conflicts, a good way is to encapsulate jQuery like so:
(function($){
$(function(){
alert('$ is safe!');
});
})(jQuery)
If I'm not mistaken:
var jq = $.noConflict();
then you can call jquery function with jq.(whatever).
jq('#selector');
It's typically used if you are using another library that uses $.
In order to still use the $ symbol for jQuery, I typically use:
jQuery.noConflict()(function($){
// jQuery code here
});
It allows for you to give the jQuery variable a different name, and still use it:
<script type="text/javascript">
$jq = $.noConflict();
// Code that uses other library's $ can follow here.
//use $jq for all calls to jQuery:
$jq.ajax(...)
$jq('selector')
</script>
If you look at the examples on the api page there is this:
Example: Creates a different alias instead of jQuery to use in the rest of the script.
var j = jQuery.noConflict();
// Do something with jQuery
j("div p").hide();
// Do something with another library's $()
$("content").style.display = 'none';
Put the var j = jQuery.noConflict() after you bring in jquery and then bring in the conflicting scripts. You can then use the j in place of $ for all your jquery needs and use the $ for the other script.
In addition to that, passing true to $.noConflict(true); will also restore previous (if any) global variable jQuery, so that plugins can be initialized with correct jQuery version when multiple versions are being used.
You simply assign a custom variable for JQuery to use instead of its default $. JQuery then wraps itself in a new function scope so $ no longer has a namespace conflict.
<script type="text/javascript">
$jQuery = $.noConflict();
// Other library code here which uses '$'
$jQuery(function(){ /* dom ready */ }
</script>
The noConflict() method releases the $ shortcut identifier, so that other scripts can use it for next time.
Default jquery $ as:
// Actin with $
$(function(){
$(".add").hide();
$(".add2").show();
});
Or as custom:
var j = jQuery.noConflict();
// Action with j
j(function(){
j(".edit").hide();
j(".add2").show();
});
<script src="JavascriptLibrary/jquery-1.4.2.js"></script>
<script>
var $i = jQuery.noConflict();
// alert($i.fn.jquery);
</script>
<script src="JavascriptLibrary/jquery-1.8.3.js"></script>
<script>
var $j = jQuery.noConflict();
//alert($j.fn.jquery);
</script>
<script src="JavascriptLibrary/jquery.colorbox.js"></script>
<script src="Js/jquery-1.12.3.js"></script>
<script>
var $NJS = jQuery.noConflict();
</script>
You can do it like this:
<script>
$i.alert('hi i am jquery-1.4.2.js alert function');
$j.alert('hi i am jquery-1.8.3.js alert function');
</script>
Today i have this issue because i have implemented "bootstrap menu" that uses a jQuery version along with "fancybox image gallery". Of course one plugin works and the other not due to jQuery conflict but i have overcome it as follow:
First i have added the "bootstrap menu" Js in the script footer as the menu is presented allover the website pages:
<!-- Top Menu Javascript -->
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/bootstrap.min.js"></script>
<script type="text/javascript">
var jq171 = jQuery.noConflict(true);
</script>
And in the "fancybox" image gallery page as follow:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="fancybox/js/libs/jquery-1.7.1.min.js"><\/script>')</script>
And the good thing is both working like a charm :)
Give it a try :)
I fixed that error by adding this conflict code
<script type="text/javascript">
jQuery.noConflict();
</script>
after my jQuery and js files and get the file was the error (found by the console of browser) and replace all the '$' by jQuery following this on all error js files in my Magento website. It's working for me good.
Find more details on my blog here
/* The noConflict() method releases the hold on the $ shortcut identifier, so that other scripts can use it. */
var jq = $.noConflict();
(function($){
$('document').ready(function(){
$('button').click(function(){
alert($('.para').text());
})
})
})(jq);
Live view example on codepen that is easy to understand: http://codepen.io/kaushik/pen/QGjeJQ
I'm having a problem doing something very basic in jQuery. Can someone tell me what I'm doing wrong exactly?
If I run the code below, the function $.get seems to be missing (getJSON and others missing too). But $ itself and other functions do exist, so I know JQuery is loading.
google.load("jquery", "1.3.2");
function _validate(form, rules_file) {
$.get('/validation_rules.json',function(data) {
alert("hello")
})
}
Any ideas would be much appreciated.
Thanks,
Rob
Edit: here is some additional info:
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("prototype", "1.6");
google.load("scriptaculous", "1.8");
google.load("jquery", "1.3.2");
</script>
<script>
jQuery.noConflict(); // prevent conflicts with prototype
</script>
<script src="/livepipe/src/livepipe.js"
type="text/javascript"></script>
<script src="/livepipe/src/window.js"
type="text/javascript"></script>
<script src="/livepipe/src/tabs.js"
type="text/javascript"></script>
<script src="/jquery.maskedinput-1.2.2.js"
type="text/javascript"></script>
This will happen, too, if you use the SLIM version of jQuery.
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
gave me
>jQuery.get
:undefined
>jQuery.get()
:VM7130:1 Uncaught TypeError: jQuery.get is not a function
at <anonymous>:1:8
while loading the same library without the slim option
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
works well
jQuery.get()
:Object {readyState: 1}
The $ variable you have is from Prototype-js, because you are using the jQuery.noConflict method.
That method will restore the $ variable back to whichever library first implemented it.
You should use the jQuery methods on the jQuery global object directly, eg.:
jQuery.get(/* .. */);
jQuery.getJSON(/* .. */);
// etc...
Or you can define another shorter variable as alias if you want:
var $j = jQuery.noConflict();
Generally speaking, when you are having the $.get is not a function error be sure you are not using the slim version of jQuery coming from Bootstrap original imports.
You can also wrap your jQuery functions in a closure and pass in jQuery as the "$" sign, eg.:
(function($) {
function _validate(form, rules_file) {
$.get('/validation_rules.json',function(data) {
alert("hello")
})
}
})(jQuery)
If you specify jQuery.noConflict(), then $ is no longer available from jQuery. use jQuery.get instead.
For me I wasn't including JQuery script. This is the fix:
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>