Experimental
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The size
read-only property of the
StylePropertyMapReadOnly
interface returns an unsinged long integer
containing the size of the StylePropertyMapReadOnly
object.
Syntax
var size = StylePropertyMapReadOnly.size
Value
An unsigned long integer.
Example
Here we use the size property to return the total entries within the button elements
computedStyleMap
.
// grab our element
const buttonEl = document.querySelector('button');
// we can retrieve all computed styles with `computedStyleMap`
const allComputedStyles = buttonEl.computedStyleMap();
// use size to get the total styles within the map
const amountStyles = allComputedStyles.size;
console.log(amountStyles); // logs 338
Specifications
Specification | Status | Comment |
---|---|---|
CSS Typed OM Level 1 The definition of 'size' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
BCD tables only load in the browser