Hey guys, first i have to say i'm new to swift.
I think it's easy for you to solve my problem, but i got stuck.
Here is the code:
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struct box {
var ID = ""
var a = 0.0
var b = 0.0
var c = 0.0
var d = 0.0
}
var boxArray = [box] ()
var newBox = box()
print("Please enter ID: ", terminator: "")
newBox.ID = String(readLine()!)
let filteredArray = boxArray.filter{$0 == newBox.ID}
filteredArray.isEmpty ...
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I want to make sure, that you can't enter an ID that is already used. Above is my attempt to code this, but just creates errors. How can I filter the boxArray only for String-type ?
This is the error:
Referencing operator function '==' on 'StringProtocol' requires that 'box' conform to 'StringProtocol'
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