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)


# create an array with one object in it
a = ['foo']
 
# the Array#new method allows several additional ways to create arrays
 
# push objects into the array
a << 1         # ["foo", 1]
a.push(3,4,5)  # ["foo", 1, 3, 4, 5]
 
# set the value at a specific index in the array
a[0] = 2       # [2, 1, 3, 4, 5]
 
# a couple of ways to set a slice of the array
a[0,3] = 'bar'    # ["bar", 4, 5]
a[1..-1] = 'baz'  # ["bar", "baz"]
a[0] = nil        # [nil, "baz"]
a[0,1] = nil      # ["baz"]
 
# retrieve an element
puts a[0]