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CharacterData: replaceData() method

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

characterData.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.

const span = document.querySelector("span");
const textnode = span.nextSibling;

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

Specifications

Specification
DOM Standard # dom-characterdata-replacedata

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`replaceData`	1	12	1	6	≤12.1	1	4.4	18	4	≤12.1	1	1.0