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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:

<!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>

Output:



Example 2:

<!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>

Output:

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

  • Chrome
  • Internet Explorer 8.0
  • Firefox 4.0
  • Safari
  • Opera


This article is attributed to GeeksforGeeks.org

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