CharacterData: replaceData() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The replaceData() method of the CharacterData interface removes a certain number of characters of the existing text in a given CharacterData node and replaces those characters with the text provided.

Syntax

js
replaceData(offset, count, data)

Parameters

offset

The number of characters from the start of the data to insert at. 0 is the first character of the string.

count

The number of characters to replace with the provided data.

data

The data to insert.

Return value

None.

Exceptions

IndexSizeError DOMException

Thrown if offset or count is negative or offset is greater than the length of the contained data.

Example

html
<span>Result: </span>A long string.
js
const span = document.querySelector("span");
const textNode = span.nextSibling;

textNode.replaceData(2, 4, "replaced");

Specifications

Specification
DOM
# dom-characterdata-replacedata

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
replaceData

Legend

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Full support
Full support

See also