Get A Css Value From External Style Sheet With Javascript Jquery

So, you're looking to jazz up your website with some cool CSS styles, right? Well, you're in luck because today we're going to talk about how you can grab CSS values from an external style sheet using JavaScript and jQuery. It may sound a bit techy, but don't worry, I'll walk you through it step by step.

First things first, let's understand why you might want to fetch CSS values from an external style sheet. Sometimes, you may have styles defined in a separate CSS file that you want to access dynamically in your JavaScript code. This can come in handy when you want to make changes to your website's appearance based on user interactions or other events.

Now, let's get into the nitty-gritty of how you can achieve this. We'll be using both plain JavaScript and jQuery to demonstrate the process.

1. Using plain JavaScript:
To retrieve a CSS value from an external style sheet using plain JavaScript, you can create a new element and load the CSS file. Once the CSS file is loaded, you can access the styles defined within it. Here's a simple example:

// Create a new  element
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = 'path/to/external.css';

// Append the  element to the document
document.head.appendChild(link);

// Access a specific CSS value using JavaScript
var bgColor = getComputedStyle(document.documentElement).getPropertyValue('--background-color');
console.log('Background color:', bgColor);

In this code snippet, we first create a element and load an external CSS file. Then, we access a specific CSS value (in this case, a custom property) using the getComputedStyle method.

2. Using jQuery:
If you prefer using jQuery for DOM manipulation, the process is just as straightforward. jQuery provides a convenient way to fetch CSS values from an external style sheet. Here's an example using jQuery:

// Load an external CSS file using jQuery
$.get('path/to/external.css', function(data) {
  // Access a specific CSS value using jQuery
  var textColor = $('<div>').css('color');
  console.log('Text color:', textColor);
});

In this code snippet, we use jQuery's $.get method to load an external CSS file asynchronously. Once the CSS file is loaded, we access a specific CSS value (in this case, the color property) using jQuery's CSS method.

By following these simple steps, you can easily retrieve CSS values from an external style sheet using JavaScript and jQuery. So, go ahead and experiment with different styles to make your website stand out! Hope this article was helpful in your coding journey. Stay tuned for more tech tips and tricks!