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What is a float? - free Swift 4 example code

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What is a float?

Written by Paul Hudson    @twostraws

The Float data type stores low-precision decimal numbers such as 3.1, 3.14159 and 556.9. It is not used that often in Swift, partly because Double is the default for these kinds of numbers (it has a higher precision), and partly because when you come across libraries that use regular floats they are more likely to want CGFloat instead.

Available from iOS 7.0 – learn more in my book

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