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substringData (method)

Owning interface and usage:  
CharacterData.substringData(offset, count)

Member of these other interfaces :  
CDATASection, Comment, Text

Description:  
Extracts a range of data from the node.

Parameters:  
unsigned long offset  -  Start offset of substring to extract.
unsigned long count  -  The number of 16-bit units to extract.

Returns:  
DOMString -  The specified substring. If the sum of offset and count exceeds the length, then all 16-bit units to the end of the data are returned.

Exceptions:  
DOMException INDEX_SIZE_ERR
Raised if the specified offset is negative or greater than the number of 16-bit units in data, or if the specified count is negative.
DOMException DOMSTRING_SIZE_ERR
Raised if the specified range of text does not fit into a DOMString.


Example:
JavaScript: 
  var txt = document.createTextNode('AAA-BBB');
  var output = txt.substringData(2,3);
Output:
desired your browser
A-B



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