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Home/ Questions/Q 6028705
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T04:46:47+00:00 2026-05-23T04:46:47+00:00

I need to do something like the following e = [] m = []

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I need to do something like the following

e = []
m = []
p = []
t = []
...and so on for about 10 different arrays

Is there a way to create all these arrays on one line?

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  1. Editorial Team
    Editorial Team
    2026-05-23T04:46:48+00:00Added an answer on May 23, 2026 at 4:46 am

    You can do it using the following:

    e,m,p,t... = Array.new(10) { [] }
    

    It turns out

    [[]]*10
    

    is not the right way to go, [[]]*10 is for repetition and is just repeating the same object [] 10 times, so all the variables would end up getting assigned to the same object.

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