How Can I Get a Background Image URL Using JavaScript?

1. Retrieve the Element's Styling:

   • Use document.getElementById() to select the element by its ID, e.g., var img = document.getElementById('myDiv');.

2. Access Computed Styling:

   • Utilize window.getComputedStyle(), or for older browsers, img.currentStyle, to access the element's actual, cascaded styling.

3. Extract the URL:

   • From the computed style, isolate the backgroundImage property.

4. Slice and Trim:

   • Remove the leading url(" and trailing ") characters, which are not part of the URL.

5. Unescape Quotes:

   • If necessary, replace any escaped double quotes (") with actual double quotes (").

Here's an example JavaScript code to implement this process:

var img = document.getElementById('your_div_id');
var style = img.currentStyle || window.getComputedStyle(img, false);
var bi = style.backgroundImage.slice(4, -1).replace(/"/g, "");

console.log('Background image URL:', bi);

This code retrieves the background image URL of the element with ID your_div_id and logs it to the console.

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