【Swift 60秒】03 - Multi-line strings

0x00 Lesson

Standard Swift strings use double quotes, but you can’t include line breaks in there.

If you want multi-line strings you need slightly different syntax: start and end with three double quote marks, like this:

var str1 =  """
This goes 
over multiple
lines
"""
1
2
3
4
5

Swift is very particular about how you write those quote marks: the opening and closing
triple must be on their own line, but opening and closing line breaks won’t be included in your
final string.

If you only want multi-line strings to format your code neatly, and you don’t want those line breaks to actually be in your string, end each line with a \, like this:

var str1 =  """
This goes \
over multiple \
lines
"""
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2
3
4
5

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0x01 Tips

You can write \n in any string to add a line break inside your text.

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0x02 Test

This code creates multi-line strings correctly - true or false?

01

var henley = """I am the master
of my fate
I am the captain of my soul"""
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2
3

02

var eliot = "This is the way the world ends
Not with a bang but with a whimper"
1
2

03

var joseph = """
When I am an old woman,
I shall wear purple
with a red hat that doesn't go,
and doesn't suit me
"""
1
2
3
4
5
6

04

var coleridge = """
Water, water, everywhere
and not a drop to drink"""
1
2
3

Answer：
01 - false
The final three quotes must be on a line by themselves.

02 - false
Multi-line strings must start and end with three double quotes on lines by themselves.

03 - true

04 - false
The final three quotes must be on a line by themselves.

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