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map swift

Passionate Amoeba answered on December 23, 2020 Popularity 10/10 Helpfulness 3/10

answer map swift

map swift

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// A map example which maps each item in  this array of numbers
// to its value multiplied by 2.

let array = [1, 2, 3, 4]

// Full closure
print(array.map({ (num: Int) -> Int in return num * 2 }))

// Abbreviated trailing closure, with inferred arguments, 
// argument type, and return type.
print(array.map { $0 * 2 })

// Output: [2, 4, 6, 8]

Popularity 10/10 Helpfulness 3/10 Language swift

Source: Grepper

Tags: map swift

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Contributed on Dec 23 2020

Passionate Amoeba

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