Mapping array works in playground but not in Xcode project

Asked Aug 11 '15 at 22:16

Active Aug 12 '15 at 22:21

Viewed 66 times

I am attempting to perform a simple mapping from one array into another.

It works perfectly in the playground, but fails in Xcode.

import UIKit

class ViewController: UIViewController, UITableViewDelegate {
    let multiplicand = [1,2,3]
    var multiplier: Int = 3
    var product = multiplicand.map({$0 * multiplier})

The error message is on the last line

'ViewController Type' does not have a member named 'multiplicand'

Swift 2.0

Xcode 7 beta 3

edited Aug 12 '15 at 22:21

Eric Aya

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asked Aug 11 '15 at 22:16

petegrif

Any reason you're not using the latest beta? – Andy Ibanez Aug 11 '15 at 23:12
Can you post the code in the context you're using it in your Xcode project? Is it in a class? – ezig Aug 12 '15 at 01:05
@ Andy I am using this beta because that is the version used in the class I am following. – petegrif Aug 12 '15 at 21:46
@ezig It isn't in a class. It is an extremely tiny project where I just wanted to test something (and failed). – petegrif Aug 12 '15 at 21:46
@petegrif you should probably move '.map' call to an initializer or any instance method – egor.zhdan Aug 12 '15 at 22:33
@egor thanks, but why is that? – petegrif Aug 12 '15 at 22:43
@petegrif take a look at this answer: http://stackoverflow.com/a/25856755/1796907 – egor.zhdan Aug 12 '15 at 22:48
@egor thanks - got it. Makes total sense. Many thanks Egor. – petegrif Aug 13 '15 at 17:45

Mapping array works in playground but not in Xcode project

0 Answers0