I can easily write a multi-dimensional array in Swift when all the dimensions are of the same type, for example:
var totalTime : [[Int]]
How would I get the first dimension to be String and the second dimension Int?
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That doesn't make sense: a multi-dimensional array is an array of arrays, so an Integer array would be an array of Integer arrays. What do you mean by "second dimension?"AstroCB– AstroCB2014-09-21 01:56:36 +00:00Commented Sep 21, 2014 at 1:56
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I can accomplish what I need with two arrays, but I am curios as to whether there is a capability to do it in one multi-dimensional array. I want one dimension to store String values and one to store Int values. So for example, totalTime[0] would return "AstroCB" and totalTime[0][0] would retrieve 555. Just trying to see what is possible.Øyvind Vik– Øyvind Vik2014-09-21 02:01:03 +00:00Commented Sep 21, 2014 at 2:01
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Ah, I see. You'd probably be better off going with erdekhayser's solution below.AstroCB– AstroCB2014-09-21 02:02:54 +00:00Commented Sep 21, 2014 at 2:02
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I think you can find better solution hereFatih– Fatih2018-02-09 13:49:17 +00:00Commented Feb 9, 2018 at 13:49
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1 Answer
I would recommend using an array of tuples instead. What you want could be accomplished using an array of type Any, but it is not a good idea.
Instead, your array should be [[(String, Int)]]. This would also be more compact than what you want to do.
var myArray: [[(String, Int)]] = []
4 Comments
Øyvind Vik
This causes a compile error I tried var arrayTest : [[(String, Int)]]
erdekhayser
@user3412502 Not sure why. This code works fine in my playground:
var arrayTest: [[(String, Int)]] = []; arrayTest.append([("Hello", 2)]); println(arrayTest);Øyvind Vik
Thanks, I was missing the
= []. This answers my questions! Thank you!
rockhammer
@erdekhayser, thanks. How can we modify values of these tuples? A simple tuple like myTuple = (123, "hello") can be modified like myTuple.1 = "changed". But myArrayOfTuples.append([(123,"how","to","modify")]) cannot be changed by myArrayOfTuples[0].1 = "no way", or myArrayOfTuples[0](1) = "no way", or myArrayOfTuples[0][1] = "no way". Thanks