Swift map

Map swift

// 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]

Source: grepper.com

Similar codes

0 vote309 views1 answer
How to recieve hex value from NSData swift
Swift
0 vote333 views1 answer
Cifilter image preserve orientation
Swift
0 vote310 views1 answer
Var a = 5 b = 12 var sum = a b print( )
Swift
1 vote301 views1 answer
Uipageviewcontroller next button swift
Swift
6 votes350 views1 answer
Swift check if string contains string
Swift
0 vote340 views1 answer
Hide bottom tab bar swift
Swift
0 vote321 views1 answer
Defer swift
Swift
0 vote319 views1 answer
Swift constructor
Swift
1 vote312 views1 answer
Swift get max of two numbers
Swift
10 votes470 views2 answers
Tellraw minecraft
Swift