jQuery prepend() with callback function

Introduction

Insert content at the beginning of each p element

View in separate window 

<!DOCTYPE html>
<html>
<head>
<script 
 src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js">
</script>//from w  w w.  ja  v  a  2s.co  m
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("p").prepend(function(n){
      return "<b>This p element has index " + n + "</b>. ";
    });
  });
});
</script>
</head>
<body>

<h1>This is a heading</h1>

<p>This is a paragraph.</p>
<p>This is another paragraph.</p>

<button>test</button>

</body>
</html>



PreviousNext

Related