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Range: setStartBefore() method

files/en-us/web/api/range/setstartbefore/index.md

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{{ApiRef("DOM")}}

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

Syntax

js-nolint
setStartBefore(referenceNode)

Parameters

  • referenceNode
    • : The {{domxref("Node")}} before which the {{domxref("Range")}} should start.

Return value

None ({{jsxref("undefined")}}).

Examples

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

range.setStartBefore(referenceNode);

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also