JavaScript Form Validation

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Sun Jul 26 2020 16:55:36 GMT+0000 (Coordinated Universal Time)

Saved by @Kavi kumaran 

<form action="/action_page.php" method="post">
  <input type="text" name="fname" required>
  <input type="submit" value="Submit">
</form>
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https://www.w3schools.com/js/js_validation.asp