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Home/ Questions/Q 6028503
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T04:44:58+00:00 2026-05-23T04:44:58+00:00

Can someone explain why the 1 was included in the first regex group instead

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Can someone explain why the “1” was included in the first regex group instead of the 2nd?

Match match = Regex.Match("q10", @"(\w+)(\d+)");
//Ugh, Regex group indicies are 1-based not 0-based.
Console.WriteLine(match.Groups[1].Value); //Expected "q" got "q1"
Console.WriteLine(match.Groups[2].Value); //Expected "10" got "0"
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  1. Editorial Team
    Editorial Team
    2026-05-23T04:44:59+00:00Added an answer on May 23, 2026 at 4:44 am

    \w matches alphanumeric characters (and underscores).

    You want [A-Za-z]

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