Check out example codes for "Ruby Array.new syntax". It will help you in understanding the concepts better.
Code Example 1
Array.new( number of indices, value of the indices ) { optional block for value of indices }
ary = Array.new #=> []
Array.new(3) #=> [nil, nil, nil]
Array.new(3, true) #=> [true, true, true]
Array.new(3) { Hash.new } #=> [ {}, {}, {} ]
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