class
Importance_2
Ruby latest stable (v1_8_7_72) - 1 note - Superclass: Object

Arrays are ordered, integer-indexed collections of any object. Array indexing starts at 0, as in C or Java. A negative index is assumed to be relative to the end of the array—that is, an index of -1 indicates the last element of the array, -2 is the next to last element in the array, and so on.

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February 12, 2009
3 thanks

Literal syntax

As you propably know you can create an Array either with the constructor or the literal syntax: 

  Array.new == []
  # => true

But there is also another nice and concise literal syntax for creating Arrays of Strings: 

  ["one", "two", "three"] == %w[one two three]
  # => true

You can use any kind of parenthesis you like after the %w, either (), [] or {}. I prefer the square brackets because it looks more like an array.