how to use jquery on button click code example

Example 1: on click jquery

$( "#dataTable tbody tr" ).on( "click", function() {
  console.log( $( this ).text() );
});

Example 2: css click event jquery

$('h1').click(function () {
        $(this).css('color', 'blue')
    });

Example 3: onclick Event jquery

// Html
<input type="text" onchange="MyFuction(this)" />
  
// Js  
function MyFunction(item) {
  var input = $(item);
  console.log(input);
}