The getAll() method of the StylePropertyMapReadOnly interface returns an array of CSSStyleValue objects containing the values for the provided property. 
 The getAll() method of the StylePropertyMapReadOnly interface returns an array of CSSStyleValue objects containing the values for the provided property. 
js
getAll(property)
propertyThe name of the property to retrieve all values of.
An array of CSSStyleValue objects.
 The following example uses getAll() with the background-image property. An Array is returned which contains an item for each background image declared. 
js
// get a button element const buttonEl = document.querySelector("button"); // we can retrieve all computed styles with `computedStyleMap` const allComputedStyles = buttonEl.computedStyleMap(); // use getAll() with the background image property const allBkImages = allComputedStyles.getAll("background-image"); console.log(allBkImages); // logs an array with each background image as an item
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
getAll | 
66 | 79 | No | No | 53 | 16.4 | 66 | 66 | No | 47 | 16.4 | 9.0 | 
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    https://developer.mozilla.org/en-US/docs/Web/API/StylePropertyMapReadOnly/getAll