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How to Add a JavaScript File to Your WordPress Site

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Adding a JavaScript file to your WordPress site is an essential step if you are looking to add custom functionality or create interactive elements on your website. JavaScript is a powerful programming language that can be used to create dynamic and engaging content for visitors. In this post, we’ll walk through the steps of adding a JavaScript file to your WordPress site.

Step 1: Upload Your JavaScript File

The first step in adding a JavaScript file to your WordPress site is to upload it into the root directory of your web server. To do this, use an FTP client such as FileZilla or Cyberduck and connect it to your web hosting service. Once connected, navigate to the root directory of your website and upload the JavaScript file there. Make sure that you name the file something descriptive so that it’s easy for you to find later on.

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Step 2: Enqueue Your Script in functions.php

Once you have uploaded the script, you need to enqueue it in functions.php in order for WordPress to recognize and load it when necessary. To do this, open up functions.php and add the following code at the end of the file:

function enqueue_my_script() { wp_enqueue_script(‘my-script’, get_stylesheet_directory_uri() . ‘/my-script.js’, array(), ‘1.0’); } add_action(‘wp_enqueue_scripts’, ‘enqueue_my_script’);

This code tells WordPress where your script is located (in this case, my-script.js) and what version of the script should be loaded (in this case, 1.0). Be sure to update ‘my-script’ with whatever you named your script! Once you’ve added this code, save functions.php and refresh your page; now WordPress will load your script whenever necessary!

Step 3: Add Custom Functionality with Your Script

Now that you have successfully added a JavaScript file to your WordPress site, you can start adding custom functionality with it! You can use any valid JavaScript code inside my-script.js in order to achieve whatever results you desire—whether it’s displaying an alert message when someone clicks on a link or animating elements on screen when someone scrolls down the page—the possibilities are endless! Just make sure that whatever code you write works properly before deploying it live; otherwise, it could cause unexpected issues on your website!


Adding a JavaScript file is an excellent way to add custom functionality or interactive elements onto any WordPress site quickly and easily—and now that we’ve gone over how exactly one goes about doing so, there’s no reason why website owners shouldn’t take advantage of all that JS has offer! Building out custom pieces of content with JS files can help engage visitors more effectively than ever before, making them more likely stay longer on pages or make purchases from eCommerce stores alike—so don’t hesitate any longer; get started today with adding some custom JS files into WordPress!

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Alexey Seryapin
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