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iOS

Posted by Wardah M
Wardah M
477 Points

Having trouble with the Type Safety and Type Inference

Given these two values we just declared, we want to compute the product and print out the product in a formatted string.

Step 1: Declare a constant named product and assign the result of multiplying firstValue and secondValue together. (To multiply two values, a and b, we write a * b).

Step 2: Using string interpolation, create a string literal that describes the operation we just performed. For example, given the following values for firstValue, secondValue and product respectively: 2, 4, 8. The string should read: "The product of 2 times 4 is 8". Assign this string to a constant named output.

AND This is what I did but it is not right:

let firstValue: Int = 23 let secondValue: Int = 12 let operation: Str = multiplication

let product = firstValue * secondValue

let output = "(The product of 23 times 12 is 276.)"

It would be great if someone can help me. Thanks

1 Answer

Anjali Pasupathy
Anjali Pasupathy
28,883 Points
Anjali Pasupathy
Anjali Pasupathy
28,883 Points

For this challenge, you need to use String interpolation to insert the firstValue, the secondValue, and the product into the output string. You don't need an operation String, so you can delete the third line. Your first two lines and your fourth line, where you declare firstValue, secondValue and product, are completely correct.

let output = "The product of \(firstValue) times \(secondValue) is \(product)"

I hope this helps!

Wardah M
Wardah M
477 Points

It worked and I understand this. Thanks!

Anjali Pasupathy
Anjali Pasupathy
28,883 Points

You're welcome!