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# DOMCharacterData->replaceData()

DOMCharacterData->replaceData() -- Replace a substring within the DOMCharacterData node

## Description

class DOMCharacterData {
void replaceData ( int offset, int count, string data )
}

Replace count characters starting from position offset with data.

## Parameters

offset

  The offset from which to start replacing.

count

  The number of characters to replace. If the sum of offset and count exceeds the length, then all characters to the end of the data are replaced.

data

  The string with which the range must be replaced.

## Return Values

No value is returned.

## Exceptions

`DOM_INDEX_SIZE_ERR`

  Raised if offset is negative or greater than the number of 16-bit units in data, or if count is negative.

## 參考

DOMCharacterData->appendData()
DOMCharacterData->deleteData()
DOMCharacterData->insertData()
DOMCharacterData->substringData()

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