array = [4, 5, 6, 7]
array[0], array[3] = array[3], array[0]
array # => [7, 5, 6, 4]
be_1va
Swap two elements of an array in Ruby
Written by Fab Mackojc
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array = [4, 5, 6, 7]
array[0], array[3] = array[3], array[0]
array # => [7, 5, 6, 4]
awesome!