Remove first byte from NSMutableData

Question

``` NSMutableData *requestData = (NSMutableData*)[request responseData]; ``` returns "[{JSON_STRING}]" so I want to strip out the "[" / "]" without converting to NSString and then back to NSData. The easiest way to do this is to strip out the first and last byte. `[requestData setLength:[requestData length]-1];` removes the last byte. How to remove the first byte? I tried the solution below, but doesn't work.. ``` NSRange range = {0, 1}; [requestData resetBytesInRange:range]; ```

Accepted Answer

You could use

```
NSRange range = NSMakeRange(1, [requestData length] - 2);
NSData *refinedData = [requestData subdataWithRange:range];
```

This should take care of both the first and last character.

Remove first byte from NSMutableData

Solution

Problem