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iOS Swift 2.0 Basics Swift Types String Manipulation

Posted by Norlan Tibanear
Norlan Tibanear
Courses Plus Student 722 Points

can't move forward in the course

not sure what is wrong in the code. seems to work in my platform.

let name = "Norlan" let interpolationGreeting = "("Hi there"), (name)"

strings.swift 
// Enter your code below

let name = "Norlan"
let interpolationGreeting = "\("Hi there"), \(name)"
Cindy Lea
Cindy Lea
Courses Plus Student 6,497 Points

Try using single quotes for Hi there

Greg Kaleka
Greg Kaleka
39,021 Points

Cynthia, single quotes will not work. You'll get a syntax error. Norlan's current code actually does work as-is, but just because it works doesn't mean it's right :smile:. There's no reason to interpolate a string literal into a string - it already is one!

4 Answers

Greg Kaleka
Greg Kaleka
39,021 Points

Hi Norlan,

You only need the \() syntax to include variables/constants or calculated values. You shouldn't put the actual string part in parens:

interpolation.swift 
// Enter your code below

let name = "Norlan"
let interpolationGreeting = "Hi there, \(name)"

I recommend re-watching this video about string interpolation earlier in the course.

Angel Caro
Angel Caro
11,831 Points
Angel Caro
Angel Caro
11,831 Points

You don't need to encapsulate the "Hi there, " as this is part of the string only encapsulate the name like so:

let greeting = "Hi there, \(name)."
Anjali Pasupathy
Anjali Pasupathy
28,883 Points
Anjali Pasupathy
Anjali Pasupathy
28,883 Points

You don't need to interpolate "Hello, there". You also need to assign the String to a constant called greeting (not interpolationGreeting), and you need to put a "." at the end.

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

I hope this helps!

Norlan Tibanear
PLUS
Norlan Tibanear
Courses Plus Student 722 Points
Norlan Tibanear
Norlan Tibanear
Courses Plus Student 722 Points

Thank you everyone.

Anjali Pasupathy
Anjali Pasupathy
28,883 Points

You're welcome! (:

Greg Kaleka
Greg Kaleka
39,021 Points

:thumbsup: