HTML number input min and max not working properly

Issue

I have type=number input field and I have set min and max values for it:

<input type="number" min="0" max="23" value="14">

When I change the time in the rendered UI using the little arrows on the right-hand side of the input field, everything works properly - I cannot go either above 23 or below 0. However, when I enter the numbers manually (using the keyboard), then neither of the restrictions has effect.

Is there a way to prevent anybody from entering whatever number they want?

Solution

With HTML5 max and min, you can only restrict the values to enter numerals. But you need to use JavaScript or jQuery to do this kind of change. One idea I have is using data- attributes and save the old value:

$(function () {
  $("input").keydown(function () {
    // Save old value.
    if (!$(this).val() || (parseInt($(this).val()) <= 11 && parseInt($(this).val()) >= 0))
    $(this).data("old", $(this).val());
  });
  $("input").keyup(function () {
    // Check correct, else revert back to old value.
    if (!$(this).val() || (parseInt($(this).val()) <= 11 && parseInt($(this).val()) >= 0))
      ;
    else
      $(this).val($(this).data("old"));
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<input type="number" min="0" max="23" value="14" />

Answered By - Praveen Kumar Purushothaman