Array with string and number

Question

In objective c it is easy to create a heterogeneous array like this:

NSArray *myArray = @["String1", "String2", 123, 456];

Is there any way to create such an array in swift?

If yes then how?

Note: I tried similar statement in swift -

var arr = ["string1", "string2", 123, 456]

but it is giving compilation error:

Playground execution failed: error: <REPL>:124:17: error: cannot convert the expression's type 'Array' to type 'IntegerLiteralConvertible'
var arr : Any = ["string1", "string2", 123, 456]

Connor · Accepted Answer · 2014-07-05 17:09:50Z

5

Yes, you can do this in Swift as well.

var arr: Array<Any> = ["string1", "string2", 123, 456]

An array of type Any can hold Strings, Ints and other objects and structs.

edited Jul 5, 2014 at 17:09

answered Jul 5, 2014 at 16:36

Connor

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4 Comments

Devarshi Over a year ago

I tried this in playground but I am getting this error msg: Playground execution failed: error: <REPL>:124:11: error: cannot convert the expression's type 'Array' to type 'ArrayLiteralConvertible' var arr = ["string1", "string2", 123, 456] Any ideas?

Connor Over a year ago

it should work if you explicitly type it. I just edited my answer

JeremyP Over a year ago

It's worth mentioning that any time you see "it doesn't work in playground" that doesn't necessarily mean it doesn't work in Swift. Playground is very much in beta at the moment and has its issues.

Peter K. Over a year ago

My understanding is that the issue is that strings in Swift are not able to have the value nil, but AnyObjects are nil-able. Anys on the other hand do not need to be nil-able. Is that the fundamental reason?

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