String interpolation

To correct this, we can put these variables inside quotes, which is known as string interpolation, using a backslash and parentheses around each of our variables inside the string interpolation. Let's update our name variable to the following, and you will see the space in the name in the Results Panel:

let full = "\(firstName) \(lastName)"

After adding the preceding line, our code should look something like this:

Now that we know about using variables inside quotes, we can do the same inside print(). Let's put the firstName and lastName variables inside print(), as follows:

print("\(firstName) \(lastName)")

The print statements are great for checking to see whether you are getting the value you want:

Bam! Now, we have a way to view multiple variables inside of print() and to create string interpolation by combining multiple strings. We can do much more with Strings, and we will cover that later in this book.