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)


julia> A = cell(3)   # create an heterogeneous array of length 3
3-element Array{Any,1}:
 #undef
 #undef
 #undef

julia> A[1] = 4.5 ; A[3] =  "some string" ; show(A)
{4.5,#undef,"some string"}

julia> A[1]          # access a value. Arrays are 1-indexed
4.5

julia> push!(A, :symbol) ; show(A)    # append an element
{4.5,#undef,"some string",:symbol}

julia> A[10]         # error if the index is out of range
ERROR: BoundsError()