HTML | DOM console.warn() Method

The method is used to write an warning message in the console. So open the console to display the output (warning message).

Syntax:

console.warn( message )

Parameters: This method accepts single parameter message which is mandatory. This parameter is used to hold the warning message.

Example 1:

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<!DOCTYPE html>
<html>
    <head>
        <title>console.warn() Method</title>
        <style>
            h1 {
                color:green;
            }
            body {
                text-align:center;
            }
        </style>
    </head>
    <body>
        <h1>GeeksforGeeks</h1>
        <h2>HTML console.warn() Method</h2>
        <p>Press F12 to view the message</p>
        <script>
            console.warn("This is a warning message for geeksforgeeks!");
        </script>
    </body>
</html>

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Output:

Image


Example 2:











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<!DOCTYPE html> 


<html> 


    <head> 


        <title>console.warn() Method</title> 


        <style> 


            h1 { 


                color:green; 


            } 


            body { 


                text-align:center; 


            } 


        </style> 


    </head> 


    <body> 


        <h1>GeeksforGeeks</h1> 


        <h2>HTML console.warn() Method</h2> 


        <p>Press F12 to view the message</p> 


        <script> 


            var Arr = ["Algorithm", "GeeksforGeeks", "Geeks" ]; 


            console.warn(Arr); 


        </script> 


    </body> 


</html> 



















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Output:

Image


Supported Browsers: The browser supported by console.warn() method are listed below:


    

  • Chrome
    • 

  • Internet Explorer 8.0
    • 

  • Firefox 4.0
    • 

  • Safari
    • 

  • Opera
    • 




          
          
          
          

            

    

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    Article Tags : 
CSS
HTML
Web Technologies

           	
Practice Tags : 
HTML

        

         

         
 
         
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