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.
CharacterData.substringData()
Syntax
domString = characterData.substringData(offset, count)
Parameters
-
offset -
The index of the first character to include in the returned substring.
0is the first character of the string. -
count -
The number of characters to return.
Return value
A string with the substring.
Exceptions
-
IndexSizeErrorDOMException -
Thrown if
offset+countis 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
|
1
|
18
|
4
|
≤12.1
|
1
|
1.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/CharacterData/substringData
