Find out how to Repair WordPress ‘jQuery isn’t outlined’ Error (6 Methods)

If you happen to’re seeing the ‘jQuery isn’t outlined’ error in your WordPress admin space (or elsewhere), don’t fear – you’re not alone. It is a frequent concern that many WordPress customers encounter. That mentioned, it may be irritating when your web site doesn’t work as anticipated.

We’ve been working with WordPress for properly over a decade, and through that point, we’ve realized learn how to troubleshoot and resolve a few of the most typical WordPress errors. That features the ‘jQuery isn’t outlined’ error.

On this information, we’ll focus on why this error happens and, extra importantly, learn how to repair it. We’ll clarify every little thing in easy phrases, so even in the event you’re not a developer, you’ll have the ability to comply with alongside and resolve the issue rapidly.

What Causes the ‘jQuery isn’t outlined’ Error?

jQuery is a extensively used JavaScript library in WordPress that helps run many interactive options. Nonetheless, generally, it could fail to load accurately, which might have an effect on the performance of your web site.

The error seems within the developer instruments beneath the Console tab, so many customers could not discover it till one thing breaks on their web site.

If you happen to see the ‘jQuery isn’t outlined’ error, it means WordPress is having hassle loading it correctly. Over time, we’ve helped numerous customers repair this concern, and we’ve realized that it often stems from a couple of frequent causes:

Outdated Themes or Plugins: Many customers encounter this error when their themes or plugins aren’t up to date to match the newest model of WordPress. We’ve typically seen this occur after main WordPress updates.

Improper Script Loading: jQuery should be loaded earlier than different JavaScript recordsdata. If it’s not, scripts that rely upon jQuery will break. This typically happens if themes or plugins aren’t coded accurately to enqueue scripts​.

JavaScript Conflicts: Different scripts working in your web site could battle with jQuery, particularly in the event that they’re not correctly loaded. This battle can break jQuery, inflicting the error.

CDN Failures: Some websites depend on jQuery hosted on a Content material Supply Community (CDN). If the CDN is unavailable or blocked, the location received’t have the ability to load jQuery, ensuing within the error.​

All of those points can stop jQuery from working easily. However don’t fear – with our expertise, we will information you thru the options to resolve the issue.

Find out how to Repair the ‘jQuery isn’t outlined’ Error

There are a number of methods to repair this error once you encounter it. Under are the best strategies we’ve used to repair this drawback.

We suggest making an attempt out these methods so as, however you should use the bounce hyperlinks under in the event you’d like to start out with a specific one:

We’ll go over every of those strategies after which offer you some further assets for troubleshooting WordPress errors. Let’s get to it!

1. Replace WordPress, Themes, and Plugins

Outdated software program is likely one of the most typical causes of the ‘jQuery isn’t outlined’ error. Outdated themes or plugins is probably not appropriate with the newest model of WordPress, which can lead to script conflicts. To repair this:

First, be sure that your WordPress core is up to date. Navigate to Dashboard » Updates and click on ‘Replace to model X.X.X’ if an replace is offered.

See our full information on safely updating WordPress to a brand new model for extra particulars.

Your WordPress plugin updates shall be listed under the core replace.

You may choose all of them and click on ‘Replace Plugins.’

Lastly, you will note updates in your WordPress themes.

Merely choose all of them and click on ‘Replace Themes.’

In case you are involved in regards to the modifications you will have made to your theme, comply with our information on learn how to replace your WordPress theme with out dropping customizations.

2. Test If jQuery Is Loaded Correctly

Earlier than exploring extra superior options, it’s essential to examine whether or not jQuery is definitely being loaded in your web site. This step helps you affirm whether or not the jQuery is offered and functioning because it ought to.

Merely right-click wherever in your WordPress web site and choose ‘View Web page Supply.’

This can present you the uncooked HTML and JavaScript in your web page.

Subsequent, press Ctrl +F (or Cmd + F on Mac) to carry up the search bar, and sort ‘jquery.min.js.’

If jQuery is loaded accurately, it is best to see a reference to it within the code.

One other technique to search for jQuery is to make use of your browser’s Examine Software. Merely go to the ‘Community’ tab and reload the web page.

Filter the community exercise by typing ‘jquery’ within the search bar. If jQuery is loaded, you’ll see it listed right here.

If you happen to don’t see jQuery loaded in both technique, the difficulty could also be the way it’s enqueued in WordPress. Within the following steps, we’ll information you thru fixing this.

3. Add a jQuery Fallback

Typically, a script in your web site could also be loading jQuery utilizing a CDN that’s having connectivity points. In that case, it will fail to load jQuery and trigger the error.

To repair the issue, you may add a jQuery fallback to your WordPress web site. This ensures that jQuery is all the time loaded.

It’s worthwhile to add it to your web site’s head part to make sure it hundreds first. Nonetheless, we don’t suggest enhancing theme recordsdata instantly. We’ve seen folks lose their modifications when updating the theme and the code they added.

One of the best ways to add customized code in WordPress is to make use of the WPCode plugin. It’s a code snippet supervisor that allows you to add customized code safely with out breaking your web site.

First, set up and activate the WPCode plugin. For particulars, see our tutorial on putting in a WordPress plugin.

As soon as activated, go to Code Snippets » + Add Snippet. Then, click on on the ‘Use snippet’ button beneath ‘Add Your Customized Code (New Snippet).’

Within the code editor, give your snippet a reputation like ‘jQuery Fallback.’

After that, choose ‘HTML Snippet’ for the ‘Code Kind.’

Subsequent, paste the next code within the ‘Code Preview’ field:

Then, scroll right down to the ‘Insertion’ part.

Right here, you may inform WPCode the place to load this code. Just be sure you choose ‘Web site Huge Header.’

Lastly, click on the ‘Save Snippet’ button on the high to avoid wasting your customized code.

After that, don’t overlook to activate the snippet by switching the toggle to ‘Lively.’

4. Repair Script Loading Order (Superior)

One other frequent cause for the ‘jQuery isn’t outlined’ error is that jQuery is loading after different scripts that depend on it. Fixing the script loading order ensures that jQuery is all the time loaded first, stopping conflicts.

If you realize which script depends on jQuery, you may enqueue that script correctly by including jQuery as a dependency.

If the ‘jQuery isn’t outlined’ error is brought on by jQuery loading after different scripts that rely upon it, you may repair the script loading order utilizing WPCode.

First, set up and activate the WPCode plugin, or go for the free model referred to as WPCode Lite.

As soon as activated, go to Code Snippets » + Add Snippet and click on on the ‘Use snippet’ button beneath ‘Add Your Customized Code (New Snippet).’

Within the code editor, give your snippet a reputation like ‘Repair Script Loading Order’ and choose ‘PHP snippet’ as your code sort.

Then, add the next code to make sure jQuery is enqueued as a dependency for any customized scripts:

Don’t overlook to exchange ‘your-script-handle’ with a significant title to establish the script. And change the ‘/js/your-script.js’ with the precise script file title in your theme’s /js/ folder.

The array(‘jquery’) half within the code ensures that jQuery is loaded first.

Upon getting added the code, scroll right down to the ‘Insertion’ choices and choose ‘Web site Huge Header’ to ensure the script is loaded in the correct a part of your web site’s HTML.

Lastly, click on the ‘Save Snippet’ button on the high to avoid wasting your customized code.

After that, don’t overlook to activate the snippet by switching the toggle to ‘Lively.’

Utilizing WPCode to correctly enqueue scripts ensures jQuery is loaded within the appropriate order. If that was the difficulty’s root, this could resolve the error.

5. Edit wp-config.php to Repair jQuery Loading Points

If the opposite strategies haven’t labored, enhancing the wp-config.php file can assist by controlling how WordPress handles script loading.

This technique is useful if script concatenation or file path points are inflicting the ‘jQuery isn’t outlined’ error.

Right here’s learn how to apply this technique:

First, entry your wp-config.php file. You are able to do this utilizing an FTP consumer like FileZilla or by accessing the file supervisor in your internet hosting management panel.

The wp-config.php file is positioned within the root listing of your WordPress set up (often within the public_html folder).

When you’ve positioned the file, open it for enhancing and add the next code simply earlier than the road that claims /* That’s all, cease enhancing! Glad running a blog. */:

Right here’s what this code does:

The ABSPATH definition ensures that WordPress is aware of the proper path to its core recordsdata, which may stop jQuery loading points.

The CONCATENATE_SCRIPTS line disables script concatenation. This forces WordPress to load every script individually, stopping conflicts that come up when scripts are merged.

After including this code, save your modifications and reload your web site to see if the error has been resolved.

Disabling script concatenation is usually a easy however efficient repair for jQuery points, particularly when different strategies don’t work.

6. Get Premium Assist to Repair the Error for You

If not one of the above strategies work otherwise you would merely moderately have an professional check out your concern, then it is best to think about using our Premium WordPress Assist providers.

For a small one-time payment, you may rent our extremely expert, skilled WordPress engineers to repair the error for you.

While you select our emergency providers, you received’t need to take care of the effort of making an attempt to repair the ‘jQuery isn’t outlined’ error by yourself.

This fashion, your web site will expertise minimal downtime, and you may resume your on-line enterprise operations as quickly as doable.

Plus, our emergency providers received’t lock you right into a contract, so it may be a terrific choice in the event you aren’t fascinated about a full-blown upkeep assist plan.

That mentioned, we do supply extra complete Upkeep Companies if you wish to take a extra proactive strategy and cut back the chance of web site emergencies sooner or later.

Bonus Sources: Troubleshooting WordPress Errors

If all of the above steps don’t assist otherwise you wish to learn additional, then the next assets could possibly be good beginning factors:

Newbie’s Information to Troubleshooting WordPress Errors (Step by Step)

Find out how to Correctly Add JavaScripts and Types in WordPress

Most Widespread WordPress Errors and Find out how to Repair Them

Find out how to Repair Render-Blocking JavaScript and CSS in WordPress

We hope this text helped you repair the ‘jQuery isn’t outlined’ error in WordPress. You may additionally wish to see our information on upgrading jQuery to the newest model in WordPress or our choose of the most effective jQuery tutorials for WordPress learners.

If you happen to favored this text, then please subscribe to our YouTube Channel for WordPress video tutorials. You may as well discover us on Twitter and Fb.

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