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sharplet/method.swift

Created January 13, 2015 07:15
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Mapping with methods
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method.swift
/// Convert a free method into a regular funcion accepting an instance as the first parameter.
func method<A, B>(m: A -> () -> B) -> A -> B {
return { m($0)() }
}
let strings = ["1", "2", "3", "foo"]
strings.map(method(String.toInt))
// => [{Some 1}, {Some 2}, {Some 3}, nil]
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