 <pre><code>$( "input" ).keyup(function() { //It's changed }); </code></pre> <p>Easy way to track any change in anywhere... Many framework with 2 ways data binding, use keyup in Javascript to $watch the changes... </p> <p>Also jQuery UI date-picker has onSelect...So easy way to do ur job... look at <a href="https://jqueryui.com/datepicker" rel="nofollow">https://jqueryui.com/datepicker</a> for more information...</p>