SOLVED: Day 11 Extensions

@sametkarakurt

Jun '21

extension String {
    var isLong: Bool {
        return count > 25
    }
}

shouldn't this be wrong

thats right :

extension String {
    var isLong: Bool {
        return self.count > 25
    }
}

don't we have to use self

@roosterboy HWS+

Jun '21

You don't necessarily need to use self within an extension when referring to properties of the thing being extended. It only becomes necessary if the compiler needs additional information. It doesn't hurt anything to use it, though, so if it makes more sense to you to do so, then by all means do.

@Baron_Blackbird HWS+

Jun '21

Howdy,

Another thing to keep in mind is 99.6% of what you learn from Paul is accurate, however some of these videos were made back when XCode 9.3 was being used. The information is almost entirely correct...excpet .self which received a major update with XCode 12.

There is nothing wrong with using .self, however XCode was improved & many times we do not need to use .self anymore.

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