Problem Statement

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.

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:

Let's start with the solution:

tup ::= <"aardvark", "cat", "dog">;

<"pinch", "tsp", "tbsp", "cup">[4] \\ "cup"
<3, 2, 1>[100] else [0]

<"sheep", "wheat", "wood", "brick", "stone">[5] → "ore"