This task is about arrays.

For hashes or associative arrays, please see Creating an Associative Array.

For a definition and in-depth discussion of what an array is, see Array.



Task

Show basic array syntax in your language.

Basically, create an array, assign a value to it, and retrieve an element   (if available, show both fixed-length arrays and
dynamic arrays, pushing a value into it).

Please discuss at Village Pump:   Arrays.

Please merge code in from these obsolete tasks:

   Creating an Array
   Assigning Values to an Array
   Retrieving an Element of an Array


Related tasks

   Collections
   Creating an Associative Array
   Two-dimensional array (runtime)


slate[1]> #x := ##(1 2 3). 
{1. 2. 3}
slate[2]> x
{1. 2. 3}
slate[3]> #y := {1 + 2. 3 + 4. 5}.
{3. 7. 5}
slate[4]> y at: 2 put: 99.
99
slate[5]> y
{3. 7. 99}
slate[6]> x first
1
slate[7]> x at: 0.
1