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How can CSS Variables be used to dynamically generate attribute selectors?

Faraz

By Faraz - June 08, 2023

Learn how to use CSS variables to dynamically generate attribute selectors for enhanced styling flexibility.


Certainly! To dynamically generate attribute selectors using CSS variables, you can use the var() function along with the attribute selector. Here's an example:


<!DOCTYPE html>
<html>
<head>
  <style>
    :root {
      --selector-attribute: "data-example";
    }
    
    [var^="var(--selector-attribute)"] {
      color: red;
    }
  </style>
</head>
<body>
  <div var="data-example-1">This is a div with the attribute value "data-example-1".</div>
  <div var="data-example-2">This is a div with the attribute value "data-example-2".</div>
  <div var="other-attribute">This div has a different attribute value.</div>
</body>
</html>

In this example, we define a CSS variable named --selector-attribute with a value of "data-example". Then, we use the var() function in the attribute selector [var^="var(--selector-attribute)"] to dynamically generate the attribute selector based on the value of the CSS variable.


The [var^="var(--selector-attribute)"] selector will match any element that has an attribute starting with the value of --selector-attribute, in this case, "data-example". The selected elements will have their text color set to red.


You can change the value of the --selector-attribute CSS variable dynamically using JavaScript to affect which elements are selected.

I hope you found the above information helpful. Please let me know in the comment box if you have an alternate answer πŸ”₯ and you can support me by buying me a coffee.

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Thanks!
Faraz 😊

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