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

3 votes385 views2 answers
Swift date to string
Swift
0 vote387 views3 answers
Swift create uinavigationcontroller programmatically
Swift
0 vote380 views1 answer
How to set the font of text in swiftui
Swift
0 vote396 views2 answers
Send email swiftui
Swift
0 vote369 views1 answer
.next() enum swift
Swift
0 vote375 views1 answer
Swift sf symbol uiimage size
Swift
0 vote398 views1 answer
Uilabel.text from array string
Swift
1 vote365 views1 answer
How to select but not focus textfield swift
Swift
0 vote377 views1 answer
After redirect from another viewcontroller in swift 5 make full view view controller
Swift
0 vote384 views1 answer
Setting a local notification at specific time every day swift
Swift