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iOS Swift Functions and Optionals Functions Syntax and Parameters

Utsav Chatterjee
Utsav Chatterjee
627 Points

I have written the code correctly and it works on Xcode too.. but i get an error here.

The change I made is func greeting(#person: String)

parameters.swift
func greeting(#person: String) {
    println("Hello")
}

2 Answers

Nick Kohrn
Nick Kohrn
36,936 Points

By default, the first parameter name in a function is a local parameter, which does not need the hash mark.

However, any subsequent parameters can accept a hash mark if it makes sense for the local and external parameter names to be the same.

Damien Watson
Damien Watson
27,419 Points

There shouldn't be a hash tag '#' before the variable:

func greeting(person: String) {
    println("Hello")
}