.on on handler events code example
Example 1: on click jquery
$( "#target" ).click(function() {
alert( "Handler for .click() called." );
});
Example 2: jquery $(document.on click
$(document).on("click","#test-element",function() {});
$( "#target" ).click(function() {
alert( "Handler for .click() called." );
});
$(document).on("click","#test-element",function() {});