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Home/ Questions/Q 3678718
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Editorial Team
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Editorial Team
Asked: May 19, 20262026-05-19T03:22:30+00:00 2026-05-19T03:22:30+00:00

I need to extract the last occurrence of a substring enclosed in _()_ ,

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I need to extract the last occurrence of a substring enclosed in _()_, e.g.

'a_long_(abc)_000' => abc
'a_long(string)_(def)_000' => def
'a_long_(string)_(abc)_blabla' => abc
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  1. Editorial Team
    Editorial Team
    2026-05-19T03:22:31+00:00Added an answer on May 19, 2026 at 3:22 am

    Match using /_\((.*?)\)_/ and grab the last match:

    >> 'a_long_(string)_foo_(abc)_blabla'.scan(/_\((.*?)\)_/)[-1]
    => ["abc"]
    
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