Not able to print values of array in swift

Question

I am not able to print array values in swift. My code is:

var array = 1...10
println(array)

The result is:

VSs5Range (has 2 children)

But when I try to print the following array, it works:

var array = [1,2,3,4,5,6,7,8,9,10]
println(array)

Result is:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Why isn't the first one printing correctly?

Jean Le Moignan · Accepted Answer · 2014-06-25 07:16:13Z

6

The expression 1...10 returns a Range, not an Array. Internally, a Range stores two values (a start and an end); an Array, on he other hand, is a dynamic structure containing "n" values.

edited Jun 25, 2014 at 7:16

answered Jun 25, 2014 at 7:08

Jean Le Moignan

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6 Comments

Mani murugan Over a year ago

so how to print array values ?

Jean Le Moignan Over a year ago

@Manimurugan You did it well in your second example.

Mani murugan Over a year ago

Le I want to print my First array ? cant i print ?

drewish Over a year ago

@JeanLeMoignan Just wanted to highlight that you used 1..10 where his example shows 1...10

LombaX Over a year ago

Your first variable is not an array. Is Range!

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LombaX · Accepted Answer · 2014-06-25 07:16:31Z

2

As explained,

var array = 1...10

array, in this case, is a Range object, not an array If you want to print its content do this (changed the name to something more suitable)

    var range = 1...10

    for value in range
    {
        println(value)
    }

answered Jun 25, 2014 at 7:16

LombaX

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2 Comments

Mani murugan Over a year ago

how can i print current index inside the for loop ?

LombaX Over a year ago

as explained, a range has only two values, a start and an end. It doesn't have any index. If you want to "simulate" simply add var idx = 0 before the for, and idx++ inside the for.

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