How to Detect Input Changes in Real Time in Any Browser with jQuery?

Detect Input Changes Immediately in Any Browser Using jQuery

You want to capture any value changes in an element in real time, triggered not only by keypresses but also by actions like copy/paste, JavaScript modifications, browser autocompletion, and form resets. Here's a robust jQuery solution that handles these changes consistently across browsers:

Implementation:

<code class="javascript">$('.myElements').each(function() {
  const elem = $(this);

  // Store the initial value
  elem.data('oldVal', elem.val());

  // Bind to change events
  elem.on("propertychange change click keyup input paste", function(event) {
    // Check if the value has changed
    if (elem.data('oldVal') != elem.val()) {
      // Update the stored value
      elem.data('oldVal', elem.val());

      // Perform your desired action when the value changes
      // ...
    }
  });
});</code>

Note:

• .bind() was deprecated in jQuery version 3.0, so use .on() instead for jQuery versions 1.7 or newer.
• This approach ensures that changes are detected immediately, unlike using setInterval or setTimeout, which introduce delays.

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