StylePropertyMapReadOnly.has()
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The has() method of the
StylePropertyMapReadOnly interface indicates whether the specified
property is in the StylePropertyMapReadOnly object.
Syntax
var boolean = StylePropertyMapReadOnly.has(property)
Parameters
- property
-
The name of a property.
Return value
A boolean value.
Example
Here we use the has() method to see if the padding-top property is present
within the button elements style attribute.
// get the button element
const buttonEl = document.querySelector('.example');
// find what's in the style attribute with attributeStyleMap and has()
const hasPadTop = buttonEl.attributeStyleMap.has('padding-top);
console.log(hasPadTop); // logs true if padding-top is present in style attribute
Specifications
| Specification |
|---|
| CSS Typed OM Level 2 # dom-stylepropertymapreadonly-has |
Browser compatibility
BCD tables only load in the browser