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iOS Swift 2.0 Basics Swift Types String Manipulation

Derrick Rodriguez
Derrick Rodriguez
490 Points

Swift 2.0 basics - String manipulatiion challenge task 1 of 2 question -whats wrong with my code..

Am I missing something
let name = "Derrick." let greeting = "("Hi there, ") (name)"

strings.swift
// Enter your code below
let  name = "Derrick."
let greeting = "\("Hi there, ") \(name)"
Derrick Rodriguez
Derrick Rodriguez
490 Points

Full question-----

Often when we use apps, we enter our name during the sign up process. Later, inside the app, we see many greetings that reference us by name.

This feature can be implemented quite simply using string interpolation. In this task we're going to declare two strings. First, declare a constant named name and assign to it a String containing your name.

Second, declare a constant named greeting. Set the value of greeting to an interpolated string that combines "Hi there, " with the string stored in the name constant.

As an example, the final value of greeting could be "Hi there, Linda.".

Note: Make sure to enter a period/full stop after your name in the final string.

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! We use the backslash and parentheses to tell Swift to put the value of a variable in that spot. Your "Hi there" isn't a variable. It's a string literal. Take a look:

// Enter your code below
let name = "Derrick"
let greeting = "Hi there, \(name)."

Here we have the name constant which you've set to your name. So far so good. Now the constant greeting should contain a string literal and include interpolation. But the "Hi there" part doesn't need the backslash and parentheses. Only the part where we're getting the value of a variable. Hope this helps! :sparkles:

Derrick Rodriguez
Derrick Rodriguez
490 Points

Thank you Jennifer , really cleared things up !

  • Much appreciated !