Styling a Bootstrap dropdown menu so that an input field within it only accepts numeric digits

I am facing an issue with my input field inside a dropdown styled with CSS and I am using Bootstrap 4. When I try to enter characters, it does not work but I can input numbers without any problem. How can I resolve this?

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<div class="dropdown" data-dropdown="true">
  <button type="button" class="btn btn-light btn-sm dropdown-toggle" data-toggle="dropdown" data-boundary="viewport">Spot</button>
  <div class="dropdown-menu" style="overflow-y: auto; max-height: 300px;" data-loaded="true" data-selectedvalues="S">
    <input placeholder="Search...Type" type="search">
    <button type="button" class="dropdown-item active" data-selectedvalues="S">Spot</button>
    <button type="button" class="dropdown-item" data-selectedvalues="T">Term</button>
  </div>
</div>

htmlcssbootstrap-4

Answer №1

After some investigation, I was able to pinpoint the problem. The issue stemmed from an event listener that was set at the document level for a specific input class. This listener would activate every time a character key was pressed. Due to the script being in a different file, it took me a while to identify the source of the issue. Initially, I mistakenly thought it was a feature from Bootstrap.

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