Usually, I would access such variables as properties that are lazy loaded, in
which case the accessing code is simply:
self.x …
and the accessor is
- (NSString *) x {
if (!_x) {
_x = @“yo”;
}
return _x;
}
- Raheel
On April 24, 2014 at 7:36:57 AM, Alex Zavatone ([email protected]) wrote:
I was just asked yesterday if there is any shorthand in Objective-C for "if
this thing = nil, then instantiate a new instance from the class"
Something like this:
NSString x;
if ([x isEqualtoString:nil]) {
x = @"yo";
}
Feel free to replace NSString with any class.
And we messed around a bit looking for any shorthand and though it looked like
a terrible idea since the comparison is done against integers using the ternary
operator, I'd like to know exactly why it's a terrible idea.
NSString x;
x = (x) ?: @"yo";
Thanks in advance.
- Alex
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