Learn Kotlin in Y Minutes

Re:Learn Kotlin in Y Minutes by asadmshah on Thursday May 18, 2017 @02:20PM (#14369675)

Yes.

    val person = selection?.organization?.owner?.let {
        setTitle(it.name)
        setImage(it.image)
        it
    }

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Re:Learn Kotlin in Y Minutes by amatheus on Thursday May 18, 2017 @02:55PM (#14369987)

You may use `also`. It is like let but it returns the receiver.

    val person = selection?.organization?.owner?.also {
        setTitle(it.name)
        setImage(it.image)        
    }

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Re:Learn Kotlin in Y Minutes by metroidfan832 on Thursday May 18, 2017 @02:37PM (#14369831)

You can use `also` instead of `let` to remove the last `it` line.

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Re:Learn Kotlin in Y Minutes by seanalltogether on Thursday May 18, 2017 @03:28PM (#14370304)

ok so I'm guessing you can't operate on more then one scope at once?

    if let person1 = dashboard?.owner, person2 = selection?.organization?.owner {
    	person1.cloneProperties(person2)
    }

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Re:Learn Kotlin in Y Minutes by kodablah on Thursday May 18, 2017 @03:45PM (#14370450)

You'd use nested let clauses and name the param instead of using the implicit "it"

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Re:Learn Kotlin in Y Minutes by meddlepal on Thursday May 18, 2017 @04:05PM (#14370647)

Or just write a function to accomplish the same behavior: http://stackoverflow.com/a/35522422/364135

Would be nice if there was a multiLet in the stdlib. Probably something that happens eventually anyways.

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