Daniel Kokin1,496 Points
Setting and Getting question
I'm just now starting to understand the concept of setting and getting. However, I'm a bit confused about all the different ways. In the diner example there are few ways discussed:
//set values like this [table1 setSubtotal: 12.75]; table1.subtotal = 12.75; //get values like this float someValue = table1.subtotal;
However, I'm not sure how I would apply the following approach in a similar scenario. Is this just for elements with key value pairs? Can someone clear it up?
[grilledCheese setValue:<#(nullable id)#> forKey:<#(nonnull NSString *)#>]
Martin WildfeuerPro Student 11,071 Points
Let's assume grilled cheese is an instance of a class called
Cheese. Cheese has a property of type string called
country. This is what the setting this value would look like, just as in your example above.
grilledCheese.country = "Switzerland"; [grilledCheese setCountry:"Switzerland"]; [grilledCheese setValue:"Switzerland" forKey:"country"];
Dot notation, that is, the first example, is the preferred way. This is explained in detail in the Apple Developer Docs: Key-Value Coding Fundamentals.
Hope that helps :)