How can i return NSError in a Objective c like completionBlock of a function in swift

Question

In swift i want send NSError in a method completion block like in objective c.

Your question is misleading. Do you want answer in `Swift` or `Objective-C`? Your question title says one and your question detail says another. — nayem, Aug 19 '17 at 17:49
`title says one and [question] says another` tagged as both. (I'd probably not tag [objective-c], make [swift] the 1st tag, not mention swift in the title and ogle the result to decide whether to (fully) hyphenate *Objective-C-like*.) (Please capitalise as best you can (the personal pronoun *I*, for one). (Use a spelling checker.) In the title, the indefinite article `a` precedes something pronounced starting with a vowel: I'd use *an*.) — greybeard, Aug 19 '17 at 18:00

score 1 · Accepted Answer · edited Aug 19 '17 at 17:51

1

Closure is same as objective c block. you can try this:

func myFunc(withCompletionHandler completionHandler:((NSError?) -> Swift.Void)?){
        var error:NSError? = nil
        //DO YOUR TASK AND ASSAIGN ERROR TO var error

        completionHandler?(error)
    }

edited Aug 19 '17 at 17:51

Andy Ibanez

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answered Aug 19 '17 at 17:46

Torongo

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thanks for the answer. i just need that :) – Rex Aug 19 '17 at 18:00

How can i return NSError in a Objective c like completionBlock of a function in swift

1 Answers1