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iOS Swift 2.0 Basics Swift Operators Working With Operators

Ian Henderson
Ian Henderson
5,512 Points

Can someone explain why XCode wants a capital "r" in "Result"? With a lower case "r", i get an "invalid declaration."

Here is my code:

// Task 1 - Enter your code below

let value = 200.0 let divisor = 5.0

let Result = value % divisor

// Task 2 - Enter your code below

let isPerfectMultiple = Result == 0

operators.swift
// Enter your code below
let value = 200
let divisor = 5

let someOperation = 20 + 400 % 10 / 2 - 15
let anotherOperation = 52 * 27 % 200 / 2 + 5

// Task 1 - Enter your code below

let value = 200.0
let divisor = 5.0

let Result = value % divisor

// Task 2 - Enter your code below

let isPerfectMultiple = Result == 0

1 Answer

Dave Berning
Dave Berning
17,365 Points

Hi Ian,

Constant and variable names in Swift are case sensitive. You must match your cases when referencing them.

var Results == 100
print(results) // this will throw an error. Swift sees these as two separate variables or an "unresolved identifier"

var Results == 100
print(Results) // this is valid with no errors. Swift sees these as the same variable.

Hope this helps, Dave