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Check any value numeric or non-numeric via jQuery

Ethan Karla 377 28 Jul 2021
How to check any value numeric or non-numeric via jQuery?
jquery jquery
Updated 27 Nov 2023
Ethan Karla
Ethan Karla

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An enthusiastic, adaptive, and fast-learning person with a broad and acute interest in the discovery of new innovative drugs, I particularly enjoy collaborating with scientists from different disciplines to develop new skills and solve new challenges.

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1 Answers

Aryan Kumar
Aryan Kumar 27 Nov 2023
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To check if a value is numeric or non-numeric using jQuery, you can use a combination of the $.isNumeric() function. Here's an example:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Check Numeric or Non-Numeric with jQuery</title>
  <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
</head>
<body>

<input type="text" id="inputValue" placeholder="Enter a value">
<button id="checkButton">Check</button>

<script>
  $(document).ready(function () {
    $('#checkButton').on('click', function () {
      // Get the input value
      var inputValue = $('#inputValue').val();

      // Check if the value is numeric using $.isNumeric()
      if ($.isNumeric(inputValue)) {
        alert(inputValue + ' is numeric.');
      } else {
        alert(inputValue + ' is non-numeric.');
      }
    });
  });
</script>

</body>
</html>

In this example:

  • An <input> element is used to get a user's input.
  • A <button> element triggers the check.
  • The jQuery code is executed when the button is clicked.
  • The $.isNumeric() function is used to check if the entered value is numeric.
  • An alert is displayed based on whether the value is numeric or non-numeric.

Make sure to include the jQuery library in your HTML file for this to work. Adjust the code as needed for your specific use case.

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