CSSRuleList: length property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The length property of the CSSRuleList interface returns the number of CSSRule objects in the list.

Value

An integer.

Examples

In the following example the number of items in the CSSRuleList named myRules is printed to the console.

js
let myRules = document.styleSheets[0].cssRules;
console.log(myRules.length);

Specifications

Specification
CSS Object Model (CSSOM)
# dom-cssrulelist-length

Browser compatibility