How to compare two NSArrays for equal content?

Question

I have 2 Nsarray where objects of 2 arrays are same may be indexes of the object differs, but it should print both are equal irrespective of there indexes

NSArra         


        

Answer 1

Another option is to convert the NSArrays to JSON strings, and compare using isEqualToString.

-(BOOL)isArray:(NSArray *)firstArray equalContentsToArray:(NSArray *)secondArray {
    if (!firstArray) {
        firstArray=@[];
    }

    if (!secondArray) {
        secondArray=@[];
    }

    NSError *error;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:firstArray options:0 error:&error];
    NSString *jsonStringOne = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

    jsonData = [NSJSONSerialization dataWithJSONObject:secondArray options:0 error:&error];
    NSString *jsonStringTwo = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

    BOOL isEqual=NO;

    if ([jsonStringOne isEqualToString:jsonStringTwo]) {
        isEqual=YES;
    }

    return isEqual;
}

I'd be curious as to a performance comparison of all these methods.