Different between NSData and NSMutableData on iPhone

Question

Different between NSData and NSMutableData on iPhone

What is the difference between NSData and NSMutableData?

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nsdata nsmutabledata

Mr.savaliya Mar 16 '13 at 6:07

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2 answers

NSData fixed after creation.

NSMutableDataAs the name implies, it allows you to perform operations that modify the contents of the ( appendBytes:, appendData, setData:...).

+3

Drc Mar 16 '13 at 6:29

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Danny beckett · Accepted Answer · 2013-03-16T06:10:16+0000

From the tag tag wiki tag:

nsdata

The NSData class is the apple class for storing shared data. Often used when reading / writing from and to files, as well as on the Internet.

nsmutabledata

NSMutableData (and its superclass NSData) provide data objects, object-oriented wrappers for byte buffers.

Different between NSData and NSMutableData on iPhone

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