Posts by Douglas Florindo de Assis • 11 points

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  Q: I need to compare variables with the lack of information

  I am creating a form and need to alert the user when a field is not filled. I am trying to use the if to make this comparison, I have tried to compare with null and it did not work. my code is like…

  javascript if

  asked 5 years, 2 months ago Douglas Florindo de Assis 11