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Vansh AgarwalCourses Plus Student 3,965 Points
== static method
When calling the == static method(which conforms to the Equatable protocol), why don't we have to call it like a normal method? Eg: Instead of saying something like Item.==(lhs: Item(quatity: 2, price: 3), rhs: Item(quatity: 3, price: 4) why can say Item(quatity: 2, price: 3) == Item(quatity: 3, price: 4) *both of these to return a boolean value
I really hope you have understood my question. If not you can just ask me for more clarity.
Correct me if I'm wrong, but operators in Swift are implemented in such a way that you can define your own. Operators can either be prefix, infix or postfix. If you don't specify anything, they default to infix. The
== operator is an infix operator, because it appears between two operands, like
value1 == value2. I guess the answer to your question is that you can't write
Item.==(lhs:Item1, rhs:Item2) is because the
== operator isn't a method that takes arguments, but rather an operator that needs operands.