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.
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.
domString = characterData.substringData(offset, count)
offset The index of the first character to include in the returned substring. 0 is the first character of the string.
countThe number of characters to return.
A string with the substring.
IndexSizeError DOMException
Thrown if offset + count is larger than the length of the contained data.
| Specification |
|---|
| DOM Standard # dom-characterdata-substringdata |
| 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 |
1 |
18 |
4 |
≤12.1 |
1 |
1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/CharacterData/substringData