12 lines
404 B
Ruby
12 lines
404 B
Ruby
# creating an empty array and adding values
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a = [] #=> []
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a[0] = 1 #=> [1]
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a[3] = "abc" #=> [1, nil, nil, "abc"]
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a << 3.14 #=> [1, nil, nil, "abc", 3.14]
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# creating an array with the constructor
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a = Array.new #=> []
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a = Array.new(3) #=> [nil, nil, nil]
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a = Array.new(3, 0) #=> [0, 0, 0]
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a = Array.new(3){|i| i*2} #=> [0, 2, 4]
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