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

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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