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error cannot assign value of type int to string swift - what am I doing wrong?

print("guess a number that I thought of")
let number = Int.random(in: 0...100)
var z = readLine()
if z = number{
print("yay")
}

Answered by Coder100 (8720) [earned 5 cycles]

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Right here, you forgot an =. Remember. = is for assignment and == is for equality:

if z == number {

@Coder100
I tried that and it didn't work.

z has to be of type string @joshuam6060

if Int(z) == number {

still isn't working @Coder100

oh right, z can be optional.

if Int(z ?? "0") == number {

thanks you so much @Coder100