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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

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

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