Functions

Map in Swift

Map is a function used to run a closure on an entire sequence.

Syntax

//can also be var
let newSequence = oldSequence.map(closure)

Notes

Types for a map are inferred.

Example

var metres = [1, 3, 5]

metresToCm = metres.map( { (metre) -> Int in metre * 100 } )
#should return [100, 300, 500]

See Also

The Swift Programming Language - Closures