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Home/ Questions/Q 6024393
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T04:08:56+00:00 2026-05-23T04:08:56+00:00

How can I generate hash something like this ? {1 => 1, 2 =>

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How can I generate hash something like this ?

{1 => 1, 2 => 2, 3 => 3}

from 1 to 31 with loop.

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  1. Editorial Team
    Editorial Team
    2026-05-23T04:08:57+00:00Added an answer on May 23, 2026 at 4:08 am

    For example:

    (1..31).inject({}) { |h, k| h[k] = k; h}
    

    If you want a hash that works for all numbers, you can do it this way:

    >> h = Hash.new { |h, k| h[k] = k } #=> {}
    >> h[221] #=> 221
    
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