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Editorial Team
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Asked: 2026-06-13T23:19:31+00:00

I have a config YAML file with the following array: EMAILS: [’email1@example.com’, ’email2@example.com’, ’email3@example.com’]

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I have a config YAML file with the following array:

EMAILS: ['email1@example.com', 'email2@example.com', 'email3@example.com']

And then I want to search inside this YAML array for a particular string, say “email1@example.com”.

I use the following ruby code:

if CONFIG[:EMAILS].include?("email1@example.com")
  return true
else
  return false
end

However, this always returns false.

I can PUTS the CONFIG[:EMAIL] array fine.

Can anyone suggest what I’m doing wrong.

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1 Answer

  1. Editorial Team

    You’re using a symbol, while the YAML hash uses strings as keys. This should work:

    if CONFIG['EMAILS'].include?("email1@example.com")
  return true
else
  return false
end

    Which, by the way, is equivalent to simply

    return CONFIG['EMAILS'].include?("email1@example.com")
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