jQuery | before() Method

The before() Method in jQuery is used to add content before the selected element.

Syntax:

$(selector).before( content, function(index) )

Parameters: This method accepts two parameters as mentioned above and described below:

content: This parameter holds the content to be inserted before the element. The possible value of content can be HTML Elements, DOM Elements, jQuery Elements.
function(index): It is optional parameter and used to specify a function that returns the content to insert before the element and index returns the index positioning of element.

Example 1: This example insert the content before the element.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        jQuery before() Method 
    </title> 
      
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> 
    </script> 
      
    <!-- Script to insert element before button element -->
    <script> 
        $(document).ready(function() { 
            $("button").click(function() { 
                $("button").before("<p>GeeksforGeeks:" 
                + " A computer science portal</p>"); 
            }); 
        }); 
    </script> 
</head> 
  
<body> 
    <button>Click Here to Insert element before button</button> 
</body> 
  
</html>      

Before click on the button:

After click on the button:

Example 2: This example insert content before the specified element.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        jQuery before() Method 
    </title> 
      
    <script src= 
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> 
    </script> 
      
    <!-- Script to add content before the element -->
    <script> 
        $(document).ready(function(){ 
            $("button").click(function(){ 
                $("span").before("<span>GeeksforGeeks: </span>"); 
            }); 
        }); 
    </script> 
</head> 
  
<body> 
    <span>A computer science portal for geek</span><br> 
      
    <span>A computer science portal for geek</span><br> 
      
    <span>A computer science portal for geek</span><br> 
      
    <button>Click to insert</button> 
</body> 
  
</html> 

Before Click on the button:

After Click on the button:

My Personal Notes

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