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iOS Swift Enums and Structs Structs and their Methods Struct Methods

Victor Leschly Ørnby
PLUS
Victor Leschly Ørnby
Courses Plus Student 2,992 Points
Posted by Victor Leschly Ørnby
Victor Leschly Ørnby
Courses Plus Student 2,992 Points

What kind of error is expected declaration ?

I can''t seem to find the problem

struct.swift 
struct Expense {
    var description: String
    var amount: Double = 10.0

    init (description: String) {
        self.description = description
    }

    func calculateTaxes(percentage: Double) -> Double{
        return (self.amount * (percentage/100))
    }

    var item = Expense(description: "Hello")
    Expense.amount = 100.0
}

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

hi, Victor Leschly Ørnby , couple of issues here.

  • Expense.amount is incorrect, it should be item.amount
  • take the last 2 lines out of the Struct, since they're not part of the Struct declaration.
struct Expense {
    var description: String
    var amount: Double = 0.0

    init (description: String) {
        self.description = description
    }

    // add the calculateTaxes method here
    // it should accept only one parameter named 'percentage' of type Double
    func calculateTaxes(percentage: Double) -> Double{
        return (self.amount * (percentage/100))
    }
}

var item = Expense(description: "Hello")
item.amount = 100.0