iosobjective-carraysnsstringjsonmodel

How to get an array type [1,2] instead of (1, 2) in Objective-c?

I'm trying to send an array in post JSONModel call. I need convett my array to NSString and send the array in format: 

[1, 2, 3]

but when I convert this to NSString and print my array, this has the format: 

(1, 2, 3)


NSMutableArray *array= [NSMutableArray arrayWithObjects:@"1", @"2",@"3",@"4", nil];
NSString *arraString = [NSString stringWithFormat:@"%@", arr];
NSLog(@"%@",arraString);

How can I create this with [] format?

Solution 
  • NSMutableArray *array= [NSMutableArray arrayWithObjects:@"1", @"2",@"3",@"4", nil];
NSData *jsond = [NSJSONSerialization dataWithJSONObject: array options:NSJSONWritingPrettyPrinted error:NULL];
NSString *json = [[NSString alloc] initWithData:jsond encoding:NSUTF8StringEncoding];

NSLog(@"%@", json);