Essential Books

Creating an Array with the literal constructor

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Arrays can be created by enclosing a list of elements in square brackets (\[ and \]). Array elements in this notation are separated with commas: 

array = [1, 2, 3, 4]

Arrays can contain any kind of objects in any combination with no restrictions on type: 

array = [1, 'b', nil, [3, 4]]
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Arrays:
* Arrays
* Create Array of Strings
* Create Array with Array new
* Create Array of Symbols
* Manipulating Array Elements
* Accessing elements
* Creating an Array with the literal constructor
* Decomposition
* Arrays union intersection and difference
* Two-dimensional array
* Inject reduce
* Filtering arrays
* Arrays and the splat operator
* map
* Turn multi-dimensional array into a one-dimensional flattened array
* Get unique array elements
* Get all combinations permutations of an array
* Remove all nil elements from an array with compact
* Create an Array of consecutive numbers or letters
* Create Array of numbers
* Cast to Array from any object
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