StylePropertyMapReadOnly.keys()
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The StylePropertyMapReadOnly.keys() method returns a new array iterator containing the keys for each item in StylePropertyMapReadOnly
Syntax
StylePropertyMapReadOnly.keys()
Parameters
None.
Return value
A new Array.
Example
In this example we use the keys() method to be able to access the properties within our Element.computedStyleMap().
// get a button element const buttonEl = document.querySelector('button'); // we can retrieve all computed styles with `computedStyleMap` const allComputedStyles = buttonEl.computedStyleMap(); // keys returns an iterable list of properties const props = allComputedStyles.keys(); console.log(props.next().value); // returns align-content
Specifications
No specification data found for api.StylePropertyMapReadOnly.keys.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
keys |
66 |
79 |
No |
No |
53 |
No |
66 |
66 |
No |
47 |
No |
9.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/StylePropertyMapReadOnly/keys