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iOS Objective-C Basics (Retired) Advanced Objective-C Dynamic Typing

tiago goncalves
tiago goncalves
1,912 Points

wowwww!!

can anyone help me with this???

Stone Preston
Stone Preston
42,016 Points

what exactly are you having trouble with? can you post some code you have tried?

tiago goncalves
tiago goncalves
1,912 Points

Declare a variable named thing of type id and initialize it to nil.

now...

declare a variable.

id items; like int items; (for example) correct?

and initialize it to nil???

tiago goncalves
tiago goncalves
1,912 Points

varaibleType variableName = nil;

:)

3 Answers

Stone Preston
Stone Preston
42,016 Points

id types are pointers by default so you don't need to include an * in the name (just fyi). here is how you declare an id variable:

id variableName = someValue;

in this case it needs to have a nil value and be named thing

tiago goncalves
tiago goncalves
1,912 Points

being nil a value of 0, right?

Stone Preston
Stone Preston
42,016 Points

no nil meaning nil. like

int a = nil;