Array of struct in Swift - swift

Question

Iteration of elements yield error
could not find member 'convertFromStringInterpolationSegment'
println("\(contacts[count].name)")", while direct list item prints fine.
What am I missing?
struct Person {
var name: String
var surname: String
var phone: String
var isCustomer: Bool
init(name: String, surname: String, phone: String, isCustomer: Bool)
{
self.name = name
self.surname = surname
self.phone = phone
self.isCustomer = isCustomer
}
}
var contacts: [Person] = []
var person1: Person = Person(name: "Jack", surname: "Johnson", phone: "7827493", isCustomer: false)
contacts.append(person1)
var count: Int = 0
for count in contacts {
println("\(contacts[count].name)") // here's where I get an error
}
println(contacts[0].name) // prints just fine - "Jack"

Answer 1

The for-in loop iterates over a collection of items, and provides the actual item and not its index at each iteration. So your loop should be rewritten as:
for contact in contacts {
println("\(contact.name)") // here's where I get an error
}
Note that this line:
var count: Int = 0
has no effect in your code, because the count variable in the for-in is redefined and visible to the block of code nested inside the loop.
If you still want to play with indexes, then you have to modify your loop as:
for var count = 0; count < contacts.count; ++count {
or
for count in 0..<contacts.count {
Last, if you need both the index and the value, maybe the easiest way is through the enumerate global function, which returns a list of (index, value) tuples:
for (index, contact) in enumerate(contacts) {
println("Index: \(index)")
println("Value: \(contact)")
}

Answer 2

First of all, you should not using init() in struct, because The
structure has initializer default.Then in this block of code:
/*
var count: Int = 0
for count in contacts {
println("\(contacts[count].name)") // here's where I get an error
}
*/
your variable "count" is not integer, it`s type is "Person".
Try this:
/*
for count in contacts {
println(count.name) // It`s must be OKey.
}
*/
I hope I help you, and sorry for my bad English:D