Freeze an array : freeze « Array « Ruby

1. Ruby
2. Array
3. freeze

Freeze an array

sequences = [[1,2,3], [1,2,4], [1,4,9]].freeze
sequences << [2,3,5]
# TypeError: can't modify frozen array
sequences[2] << 16                               # => [1, 4, 9, 16]

 

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