jQuery on()

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The on() jQuery function binds one or more event handlers with the specific HTML elements and their child elements.
This method provides a function to run when the events occur.
This method is the latest replacement of the bind(), live() and delegate() methods.
If you want to remove event handlers attached with an element then use the jQuery off() method.

Related Topics:

jQuery load

jQuery unload

jQuery on

Syntax:

$(selector). on(event ,child_selector, data,function,map);

Parameter description:

event: This parameter represents one or more events to attach to the elements. It is mandatory.
child_selector: This parameter represents one or more child elements to attach to the event handler. It is an optional parameter.
data: This represents the additional data to pass to the function. It is an optional parameter.
function: It represents the function to run when the event occurs.
map: It represents an event map that contains one or more events to attach to the selected HTML elements.

Example:

<html>
 <head>
 <title> jQuery Example </title>
 <script type = "text/javascript"
        src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js">
      </script>
<style>
p{
background:pink;
padding:20px;
}

</style>
<script>
$(document).ready(function(){
  $("p").on({
    mouseover: function(){
      $("p").css("background-color", "lightgray");
	  $("p").css("font-size", "20px");
    },
    mouseout: function(){
      $("p").css("background-color", "pink");
	  $("p").css("font-size", "16px");
    },
    click: function(){
      $("body").css("background-color", "yellow");
	   $("p").css("background-color", "green");
	   $("p").css("color", "white");
    }
  });
});
</script>
 </head>
 <body>

<h2> jQuery on() method Example </h2>
<p> This is a paragraph </p>
 </body>
</html>