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What are some common types of form validation errors that can occur, and how do you handle them?

Utpal Vishwas 336 11-May-2023

What are some common types of form validation errors that can occur, and how do you handle them?

html html form  form validation 
Updated on 15-May-2023
Utpal Vishwas

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I am Utpal Vishwas from Uttar Pradesh. Have completed my B. Tech. course from MNNIT campus Prayagraj in 2022. I have good knowledge of computer networking.

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Aryan Kumar

Aryan Kumar

15-May-2023


Here are some common types of form validation errors that can occur:

  • Required fields are not filled out. This is the most common type of form validation error. It occurs when a user does not fill out a required field on a form.
  • Invalid data is entered. This can occur when a user enters data that does not meet the requirements for a particular field. For example, a user might enter a phone number that is not in the correct format.
  • Duplicate data is entered. This can occur when a user enters the same data into two different fields. For example, a user might enter the same email address into both the email address field and the confirm email address field.
  • Data is out of range. This can occur when a user enters data that is outside of the allowed range for a particular field. For example, a user might enter a number that is too large for a field that only accepts numbers between 1 and 10.
  • Data is not formatted correctly. This can occur when a user enters data that is not in the correct format for a particular field. For example, a user might enter a date in the wrong format.

Here are some tips for handling form validation errors:

  • Provide clear and concise error messages. When a user encounters a form validation error, provide them with a clear and concise error message that explains what they need to do to correct the error.
  • Allow users to correct errors. Give users the ability to correct errors before submitting the form. This can be done by disabling the submit button until all errors have been corrected.
  • Provide helpful hints and tips. Provide users with helpful hints and tips that can help them to avoid errors when filling out forms. For example, you might provide a list of valid email addresses or a range of acceptable numbers for a particular field.
  • Test your forms thoroughly. Before you put your form into production, test it thoroughly to make sure that all of the validation rules are working properly.
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