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CharacterData: substringData() method

The substringData() method of the CharacterData interface returns a portion of the existing data, starting at the specified index and extending for a given number of characters afterwards.

Syntax

js

  domString = characterData.substringData(offset, count)

Parameters

offset

The index of the first character to include in the returned substring. 0 is the first character of the string.

count

The number of characters to return.

Return value

A string with the substring.

Exceptions

IndexSizeError DOMException

Thrown if offset + count is larger than the length of the contained data.

Specifications

Specification
DOM Standard
# dom-characterdata-substringdata

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
substringData 1 12 1 6 ≤12.1 1 4.4 18 4 ≤12.1 1 1.0

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https://developer.mozilla.org/en-US/docs/Web/API/CharacterData/substringData