Range: setStartBefore() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

The Range.setStartBefore() method sets the start position of a Range relative to another Node. The parent Node of the start of the Range will be the same as that for the referenceNode.

Syntax

js
setStartBefore(referenceNode)

Parameters

referenceNode

The Node before which the Range should start.

Return value

None (undefined).

Examples

js
const range = document.createRange();
const referenceNode = document.getElementsByTagName("div").item(0);

range.setStartBefore(referenceNode);

Specifications

Specification
DOM Standard
# dom-range-setstartbefore

Browser compatibility

BCD tables only load in the browser

See also