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Merge pull request #1953 from pikazlou/scala-functions

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usage of named parameters in functions
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Adam Bard 2015-10-31 22:51:27 +08:00
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@ -169,6 +169,12 @@ def sumOfSquaresShort(x: Int, y: Int): Int = x * x + y * y
// Syntax for calling functions is familiar: // Syntax for calling functions is familiar:
sumOfSquares(3, 4) // => 25 sumOfSquares(3, 4) // => 25
// You can use parameters names to specify them in different order
def subtract(x: Int, y: Int): Int = x - y
subtract(10, 3) // => 7
subtract(y=10, x=3) // => -7
// In most cases (with recursive functions the most notable exception), function // In most cases (with recursive functions the most notable exception), function
// return type can be omitted, and the same type inference we saw with variables // return type can be omitted, and the same type inference we saw with variables
// will work with function return values: // will work with function return values: