CharacterData.insertData()

The insertData() method of the CharacterData interface inserts the provided data into this CharacterData node's current data, at the provided offset from the start of the existing data. The provided data is spliced into the existing data.

Syntax

characterData.insertData(offset, data)

Parameters

offset

The offset number of characters to insert the provided data at. 0 is the first character of the string.

data

The data to insert.

Return value

None.

Exceptions

IndexSizeError DOMException

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

Example

<span>Result: </span>A string.
const span = document.querySelector("span");
const textnode = span.nextSibling;

textnode.insertData(2, "long ");

Specifications

Specification
DOM Standard
# dom-characterdata-insertdata

Browser compatibility

BCD tables only load in the browser

See also