What's the 'Ruby way' to iterate over two arrays at once

Question

More of a syntax curiosity than a problem to solve...

I have two arrays of equal length, and want to iterate over them both at once - for example, to output both the

Answer 1

>> @budget = [ 100, 150, 25, 105 ]
=> [100, 150, 25, 105]
>> @actual = [ 120, 100, 50, 100 ]
=> [120, 100, 50, 100]

>> @budget.zip @actual
=> [[100, 120], [150, 100], [25, 50], [105, 100]]

>> @budget.zip(@actual).each do |budget, actual|
?>   puts budget
>>   puts actual
>> end
100
120
150
100
25
50
105
100
=> [[100, 120], [150, 100], [25, 50], [105, 100]]