JavaScript Validation API with DOM

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  1. <!DOCTYPE html>
  2.  
  3.  
  4. <p>Enter a number and click Here Button:</p>
  5.  
  6. <input id="1" type="number" min="5" max="10" required>
  7. <button onclick="myFunction()">OK</button>
  8.  
  9. <p>If the number is less than 5 or greater than 10, an error message will be displayed.</p>
  10.  
  11. <p id="test"></p>
  12.  
  13. function myFunction() {
  14. var inpObj = document.getElementById("1");
  15. if (!inpObj.checkValidity()) {
  16. document.getElementById("test").innerHTML = inpObj.validationMessage;
  17. } else {
  18. document.getElementById("test").innerHTML = "OK";
  19. }
  20. }
  21. </script>
  22.  
  23. </body>
  24.  
  25. </html>

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