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APIs
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__GetComputedStyleByKey

Introduction

Returns the resolved style value for a CSS property of an element

Syntax

__GetComputedStyleByKey(element: Element, key: string) : string;

Parameters

KeyDescription
elementAny Element object.
keyA string indicating the CSS property key to be retrieved. Keep in mind that not every CSS property is supported. Refer to the Compatibility table to see which properties are supported.

Return Value

Resolved style value for a CSS property of specified element.

CAUTION

Unlike browser, this PAPI won't trigger document reflow.

Example

The frontend framework can retrieve resolved style value of an Element as follows.

// main-thread.js
let page = __CreateElement('page', 0, {});

let element = __CreateElement('view', 0, {});
__SetInlineStyles(element, {
  top: '10px',
  left: '10px',
  right: '10px',
  bottom: '10px',
});

__AppendElement(page, element);
__FlushElementTree(page, {});

let width = __GetComputedStyleByKey(element, 'width');

Compatability

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Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.