void deleteData(unsigned long offset, unsigned long count) throws DOMException;
offset
The position of the first character to be deleted.
count
The number of characters to be deleted.
This method may throw a DOMException with one of the following code values:
INDEX_SIZE_ERR
The offset or count argument is negative, or offset is greater than the length of the Text or Comment node.
NO_MODIFICATION_ALLOWED_ERR
The node is read-only and may not be modified.
This method deletes characters from this Text or Comment node, starting with the character at the position offset and continuing for count characters. If offset plus count is greater than the number of characters in the Text or Comment node, all characters from offset to the end of the string are deleted.