What is the length in bytes of a NSString?

Question

How do I get the bytes length of NSString? if myString contains \"hallo\", myString.length will return 5, but how many actual bytes are ta

Answer 1

From the Apple documentation:

An NSString object encodes a Unicode-compliant text string, represented as a sequence of UTF–16 code units. All lengths, character indexes, and ranges are expressed in terms of 16-bit platform-endian values, with index values starting at 0.

So the memory used by an NSString is 2 bytes per character plus whatever fixed memory is used by the object itself.