arrays

Array literals are built with square brackets that are clearly not an indexing operator.

Arrays may contain any other langur data structures, and they may be mixed freely.

Arrays may be appended with the concatenation operator (tilde) or with the more() function. Like concatenation, the more() function creates a new array and does not modify the original.

[1, 2, 3] ~ [4, 5, 6, 7] == [1, 2, 3, 4, 5, 6, 7] # true