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iOS Swift Basics (retired) Control Flow For-In Loop

Posted by Dan S
Dan S
1,166 Points

In the example, for number in 1..<10 { println("\(number) times 2 is \(number*2)") what does backslash mean?

I am just wondering what the backslash means? I don't recall learning what the backslash does in the println function. Could you please explain what it does? Thanks.

2 Answers

Kevin Hamil
Kevin Hamil
8,203 Points
Kevin Hamil
Kevin Hamil
8,203 Points

It's called String Interpolation. The slash just tells the compiler that you're inserting a variable in your print string and it should use the variable's value. Must be used with the parenthesis.

Dan S
Dan S
1,166 Points
Dan S
Dan S
1,166 Points

Thank you! I got it now!