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

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

<span>Result: </span>A long string.

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

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

Specifications

Browser compatibility

See also

• CharacterData.appendData()
• CharacterData.deleteData()
• CharacterData.insertData()
• CharacterData.data