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 vote102 views1 answer
Add arc swiftui
Swift
7 votes311 views1 answer
Dart capitalize first letter of each word
Swift
1 vote158 views1 answer
Swift scroll to tableviewcell
Swift
1 vote156 views1 answer
Remove child from firebase swift
Swift
0 vote181 views1 answer
How to change the color of back button navbar xcodee
Swift
1 vote148 views1 answer
Get device name swift
Swift
0 vote193 views1 answer
Swift core data order by
Swift
0 vote148 views1 answer
Make text autoresize swiftui
Swift
1 vote165 views1 answer
Porsche
Swift
0 vote161 views1 answer
How to add dragdown gesture recognizer on view
Swift