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iOS Protocols in Swift Protocol Basics Modeling Behavior With Protocols

Posted by Fredrick Barrett
Fredrick Barrett
2,068 Points

Why does initializing startDate "self.startdate = startDate" give an error saying assigning a property to itself?

In the video, there are no errors when Pasan writes this, but in my playground there is an error

Jhoan Arango
Jhoan Arango
13,603 Points

Hello,

Would you be able to provide your code ?

2 Answers

Jhoan Arango
Jhoan Arango
13,603 Points

Fredrick,

At a first glance, I do not see the parameter in the initializers signature named "startDate". With that said, the error is showing because you are initializing "startDate" from it's own property.

To fix this, add the parameter "startDate" to the initializer. ( change the name from date to startDate )

init(name: String, address: String, startDate: Date, type: EmployeeType) {

    self.name = name
    self.address = address
    self.startDate = startDate
    self.type = type

}

OR if you want to use "date", you have to initialize it this way.

init(name: String, address: String, date: Date, type: EmployeeType) {
    self.name = name
    self.address = address
    startDate = date // Note that "self" is no longer required
    self.type = type
}

// Self is not required because there is no ambiguity 
// between the parameter name and the property

Hope this helps.

Fredrick Barrett
Fredrick Barrett
2,068 Points

Thank you, this helped so much

Fredrick Barrett
Fredrick Barrett
2,068 Points
Fredrick Barrett
Fredrick Barrett
2,068 Points

class Employee { let name: String let address:String let startDate: Date let type : EmployeeType

init(name: String, address: String, date: Date, type: EmployeeType) {
    self.name = name
    self.address = address
    self.startDate = startDate
    self.type = type
}

}