How to define object within a line of code? (noob)

Question

Sorry for this noob question, but how can i write this in 1 line?

NSInteger minuteInterval=5;
[countdownPicker setMinuteInterval:minuteInterval];

Thanks

Because the first line seems superfluous to me, why to create an additional variable to pass a value to the setMinuteInterval method. — Manuel, Jan 31 '14 at 16:00
There is nothing wrong with that. You could use a constant though instead. Your code will not be any less performant and assigning values to well named variables makes your code more readable (avoids ["magic" numbers](http://en.wikipedia.org/wiki/Magic_number_(programming))). In this case of course the meaning of the value is obvious from the method signature. — DrummerB, Jan 31 '14 at 16:06

score 2 · Accepted Answer · answered Jan 31 '14 at 15:45

2

This will work: [countdownPicker setMinuteInterval:5];

answered Jan 31 '14 at 15:45

Greg

Why does this work if setMinuteInterval requires an NSInteger object according to Xcode? Isn't "5" an integer value rather than the required object of class NSInteger? – Manuel Jan 31 '14 at 15:52
1

An NSInteger isn't an Objective-C object, it's a long. From [Foundation Data Types Reference](https://developer.apple.com/library/ios/documentation/cocoa/reference/foundation/Miscellaneous/Foundation_DataTypes/Reference/reference.html): typedef long NSInteger; – jonmorgan Jan 31 '14 at 15:54
@ManuelTrezza The compiler will properly adjust the number literal to the needed type. – rmaddy Jan 31 '14 at 15:54

score 1 · Answer 2 · answered Jan 31 '14 at 15:44

1

NSInteger minuteInterval=5; [countdownPicker setMinuteInterval:minuteInterval];

answered Jan 31 '14 at 15:44

DrummerB

in one line / on one line... – Wain Jan 31 '14 at 15:45
1

Why would someone downvote this answer? The OP said one line, not one statement. This is one line of code. – rmaddy Jan 31 '14 at 15:47
I think he means one statement, I doubt that he isn't capable of moving them to a single line. – Ramy Al Zuhouri Jan 31 '14 at 15:54
@RamyAlZuhouri Until the OP explains the point of this question, we should not make any assumptions. – rmaddy Jan 31 '14 at 15:55
1

Thanks Ramy, that's what I meant, but it was funny to read this answer anyway :) – Manuel Jan 31 '14 at 15:56

2 Answers2