比较两个数组并合并它们Ruby

array1 = [1, 2, 3]
array2 = [4, 5, 6]
merged_array = array1.concat(array2)
puts merged_array.inspect

[1, 2, 3, 4, 5, 6]

array1 = [1, 2, 3]
array2 = [4, 5, 6]
merged_array = array1 + array2
puts merged_array.inspect

[1, 2, 3, 4, 5, 6]

array1 = [1, 2, 3]
array2 = [3, 4, 5]
merged_array = array1.concat(array2).uniq
puts merged_array.inspect

[1, 2, 3, 4, 5]