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If you must load jQuery, use a recent, minified version of the library. If you only need to do simple DOM traversal or trivial HTTP requests, look into using native JavaScript rather than loading the library. If the site is not running jQuery, look at the complexity of the tasks you want to do. Just make sure to avoid race conditions if jQuery is loaded asynchronously (as it should). If the site already loads the jQuery library, use it at will. Here are my own, personal rules of thumb:

#DOWNLOAD LATEST JQUERY FROM GOOGLE HOW TO#

How to write an HTTP POST request with and without jQuery Once you’ve created that Custom HTML tag, scroll down to its Advanced settings, and set its Tag firing options to Once per page. It’s not perfect, since sometimes just because the library loaded doesn’t mean it managed to execute correctly (if there are conflicts in the page’s global namespace, for example), and an error isn’t always thrown if the library fails to load. Because it’s asynchronous, you also add a load listener, which fires when the library has loaded successfully, and an error listener, which fires if the library failed to load due to an error. Do not add any triggers to this tag.īasically, you create an asynchronous load request for the jQuery library from jQuery’s own CDN (content distribution network). You’ll need to enable the Container ID and HTML ID built-in variables for this. 0 in Google CDN references to jQuery 1.x.0 for more information.Var el = document.createElement( 'script') Įl.addEventListener( 'load', function() )

#DOWNLOAD LATEST JQUERY FROM GOOGLE FULL VERSION#

However, do keep in mind that these links have a much shorter cache timeout than with the full version number, so your users may be downloading them more than you'd like. I don't know if/where it's published, but you can get the latest release by omitting the minor and build numbers.

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However, jQuery 1.x is a larger download than 2.x.

The two versions have the same API, so there is no perceptual difference for compatible browsers. If you want the latest version of jQuery 2.x, then (for now) you need to specify that explicitly. This is because jQuery 1.x is compatible with older browsers including IE 6/7/8, and jQuery 2.x is not. As of this writing, it links to the latest version of jQuery 1.x, even though jQuery 2.x has been released as well. may not always give you the version you expect, either. So, by linking to jQuery this way, you're actually eliminating one of the major reasons to use a CDN in the first place. In fact here's a breakdown of several options and their expiration How will the browser make sure it's getting the latest version today? Answer: no caching.) (Say that the link to 1.7 points to 1.7.1 one day and 1.7.2 the next day. If you provide a partial version number, far-future caching doesn't happen - because if it did, some users would get different minor versions of jQuery from the same URL. The problem is, caching only works if you provide a full version number. Many people link to jQuery on a CDN because many other sites do, and your users have a good chance of having that version already cached. The old versions are still available on the CDNs, and if they work for your purposes, then why bother replacing them?Ī secondary, but possibly more important, issue is caching. There's simply no good reason to ALWAYS be using the latest version of jQuery.

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No responsible developer would automatically include new code from another site without testing it thoroughly. Doing so might even add NEW errors to your code which didn't exist before. If the answer is 'no', don't bother updating your code to the latest jQuery version. Then, when a new version of jQuery rolls out, ask yourself: Do I need this new version in my code? For instance, is there some critical browser compatibility that didn't exist before, or will it speed up my code in most browsers? Test it, debug it, publish it when it's ready for production. Here's what you should be doing: write your code using the latest version of jQuery.

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If you update jQuery automatically without testing your code COMPLETELY, you risk an unexpected surprise if the API for some critical method has changed. Linking to major versions of jQuery does work, but it's a bad idea - whole new features get added and deprecated with each decimal update. The following, now moot, answer is preserved here for historical reasons. Will stay locked at version 1.11.1 as well. Inadvertent web breakage and no longer updates the file at The Google CDN team has joined us in this effort to prevent Updating this file, as well as the minified copy, keeping both files Was only being used by developers to make a local copy. UPDATE : As of now, jquery-latest.js is no longer being updated.

Download latest jquery from google