jQuery delegate()

0 1496

The delegate() jQuery function binds one or more event handlers with the specific HTML elements that are children of selected HTML element.
This method provides a function to run when the events occur.
If we create an element in runtime by script, this method will also work for that element.

Related Topics:

jQuery load

jQuery unload

jQuery delegate()

Syntax:

$(selector). delegate(child_selector,event,data,function);

Parameter description:

child_selector: This parameter represents one or more child elements to attach to the event handler. It is a mandatory parameter.
event: This parameter represents one or more events to attach to the elements. It is also mandatory.
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.

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;
}
span{
background:green;
color:white;
padding:20px;
}
</style>
<script>
$(document).ready(function(){
 $("body").delegate("p", "click", function(){
    $(this).slideToggle();
  });
  $("span").click(function(){
    $("<p>Click me to hide!</p>").insertAfter("span");
  });
});
</script>
 </head>
 <body>

<h2> jQuery delegate() Method Example </h2>
<p> Click me to hide! </p>
<span> Click me to insert new one </span>
 </body>
</html>