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iOS Swift 2.0 Basics Swift Types String Manipulation

Posted by George Gutieres
George Gutieres
579 Points

string manipulation quiz need help

let name = "george" let greeting = "("Hi there,") (name)." this code is not working for string manipulation quiz can someone help

strings.swift 
// Enter your code below
let name = "george"
let greeting = "\("Hi there,") \(name)."
Kyle Lambert
Kyle Lambert
1,969 Points
Kyle Lambert
Kyle Lambert
1,969 Points 
Hi George,

Their is no need for 'Hi there' to be enclosed in sting interpolation parentheses '\()' 
as it is not declared anywhere. Only name needs to be as it is the value of the 
constant 'name'

This is the code you're looking for...

let name = "George"
let greeting = "Hi there, \(name)."

Hope this helps

2 Answers

Austin Whitelaw
Austin Whitelaw
9,065 Points
Austin Whitelaw
Austin Whitelaw
9,065 Points

If you look at your code, everything in the purple is recognized as a string. The part that says 'Hi there' is not in purple, and the reason for this is because of the quotation marks. When the compiler sees a quotation mark, everything after that is a string until the next quotation mark. So it literally sees the first part of that line as a string, then there's some random text in the middle, and then the last part is another string.

So basically you can get rid of the quotation marks around 'Hi there'. Also, you only need to put it inside the parentheses if it is variable/constant. So when you were trying to use the constant name, that was correct, but the first part just needed to be taken out of the parentheses. Sorry if my explanation is not well enough, but this should be pretty straight forward. Ask if you don't understand anything. It should look like this:

let greeting = "Hi there, \(name)."

See there is no need for any more quotation marks. Swift knows that once it sees the backslash in a string, something else is happening. Some other languages also do this but it may be in a different way.

anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points 
// Enter your code below
let name = "Name" //i just put name

let greeting = "Hi there, \(name)." 

let finalGreeting = greeting + " How are you?" //concatenate greeting with the string