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Asked: 2026-05-13T09:56:17+00:00

I need to remove all leading and trailing non-numeric characters. This is what I

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I need to remove all leading and trailing non-numeric characters. This is what I came up with. Is there a better implementation.

puts s.gsub(/^\D+/,'').gsub(/\D+$/,'')
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  1. Editorial Team

    Instead of eliminating what you don’t want, it’s often clearer to select what you do want (using parentheses). Also, this only requires one regex evaluation:

    s.match(/^\D*(.*?)\D*$/)[1]

    Or, this convenient shorthand:

    s[/^\D*(.*?)\D*$/, 1]
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