Comparing NSString AND NSNumber in XCode

For the beginners, it is a bit uncommon string comparing syntax. I faced the same problem at the beginning of iPhone programming. It is not complex but jut you have to know the syntax, that’s it.

Get the string from a nsdata type and compare it with other string.

NSString comparison--

 NSString *txt = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];

NSString *txtComp = @"Value1";

if ([txt isEqualToString:txtComp]) {
lblVal.text = txt;
}

Note: [The “==” operator will compare the reference to your string literal and so never return true.]

Now, to compare NSNumeric -

if([numValue isEqualToNumber:[NSNumber numberWithInt:7]])

 yourFunction();

Or,

If([myNumber intValue] == 7)

Now , compare String with Number-

Just convert Number to string and do compare.