CharacterData: deleteData() method

The deleteData() method of the CharacterData interface removes all or part of the data from this CharacterData node.

Syntax

characterData.deleteData(offset, count)

offset: The number of bytes from the start of the data to remove from. 0 is the first character of the string.
count: The number of bytes to remove.

None.

IndexSizeError DOMException: Thrown if offset is greater than the length of the contained data.

html

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

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

textNode.deleteData(1, 5);

Specification
DOM Standard # dom-characterdata-deletedata

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