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  1. Mar 2021
  2. final-form.org final-form.org
    Final Form Docs – FAQ
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    1. TylerRick 31 Mar 2021
      // WRONG ❌ - values.myField might be undefined! if (!values.myField.match(/myexpression/)) {
      problem: might be undefined/null
    2. TylerRick 31 Mar 2021
      If you are doing a regular expression check, your function should handle undefined as a potential value.
      easy to forget problem: might be undefined/null
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    final-form.org/docs/final-form/faq