DOMRectReadOnly: toJSON() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

Note: This feature is available in Web Workers.

The DOMRectReadOnly method toJSON() returns a JSON representation of the DOMRectReadOnly object.

Syntax

js
toJSON()

Parameters

None.

Return value

A new object whose properties are set to the values in the DOMRectReadOnly on which the method was called.

Examples

This example creates a DOMRectReadOnly that represents a rectangle at position (10, 20) with a width of 100 and a height of 50. It then calls toJSON() to obtain a JSON representation of the rectangle.

js
const rect = new DOMRectReadOnly(10, 20, 100, 50);

const rectJSON = rect.toJSON();
console.log(rectJSON);
// Output: { x: 10, y: 20, width: 100, height: 50, top: 20, right: 110, bottom: 70, left: 10 }

Specifications

Specification
Geometry Interfaces Module Level 1
# dom-domrectreadonly-tojson

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
toJSON

Legend

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Full support
Full support