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iOS Swift Enums and Structs Structs and their Methods Struct Methods

Posted by Steven Burrows
Steven Burrows
2,607 Points

error in calculation given

I copied and pasted the equation into the screen but I get the following error

swift_lint.swift:12:29: error: 'Double' is not convertible to '()' return (self.amount * (25/100))

But I don't get any errors in xcode

struct.swift 
struct Expense {
    var description: String
    var amount: Double = 0.0

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

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

}
Justin Kendall
Justin Kendall
1,882 Points
Justin Kendall
Justin Kendall
1,882 Points

You need to add a return type of Double. I completely missed it when I just did it. I had to get my brother who does iOS development to look at it to figure out what was wrong with it. It should look like this:

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))
    }
}