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# Arrays
Arrays in Limbo are dynamic and indexed by 0. They can be initialized providing a size, or declared and initialized in two separate statements if no size is specified.
Disclaimer: I don't like this example very much, but I'm not sure how to shore it up. The less on here is to use lists.
## Source
### arrays.b:20,30
### arrays.b:32,44
### arrays.b:46,57
### arrays.b:59,67
### arrays.b:69,84
### arrays.b:86,94
### arrays.b:96,122
## Demo
; limbo arrays.b
; arrays
Len nums: 0
Len nums: 6
[ 0 2 4 6 8 10]
Len arr: 12
[ b a b y d u c k s ! !]
Len dbl: 24
[ b b a a b b y y d d u u c c k k s s ! ! ! !]
Len chars: 6
[ a b c d e f]
Len nest: 0
Len nest: 4
Lens: [ 2 4 8 16]
Len buf: 10
[ 3 3 3 3 3 3 3 3 3 3]
Len two: 4
Lens: [ 1 0 1 0]
[ (ducks quack) (nil, nil) (inferno os) (nil, nil)]
;
## Exercises
- Play with the widths of different arrays, what happens?
- What can you initialize with the `* =>` operator, what can't you?
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