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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

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