Three double quotes '"""' in Swift
Indentation at the start of each quoted line is removed, as long as it matches the indentation of the closing quote.
Example:
let quotation = """Even though there's whitespace to the left,
the actual lines aren't indented.
Except for this line.
Double quotes (") can appear without being escaped.
I still have \(apples + oranges) pieces of fruit."""
You can only use them with Xcode 9 above, Swift 4 above.
Reference:
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