JavaScript | Location protocol Property

What is Protocol?
A network protocol defines rules and conventions for communication between network devices. By adopting these rules, two devices can communicate with each other and can interchange the information.

Syntax:

location.protocol

Properties:



  • ftp: The File Transfer Protocol (FTP) is a standard network protocol used for the transfer of computer files between a client and server on a computer network.
  • http: The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed system.
  • https: The Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP) for secure communication and widely used in Internet.
  • file: It is used for file or in local server system.
  • mailto: It is used in mail system.

Return Value: The protocol property returns the protocol of the current URL, including the colon (:).

Below example illustrates the location.protocol property in JavaScript:
Example:

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<!DOCTYPE html>
<html>
    <head>
        <title>Location protocol property</title>
        <style>
            #Gfg {
                position: center;
                width: 220px;
                height: 50px;
                color: green;
            }
        </style>
          
        <script>
          
            // Function that tells the Protocol
            // of current url.
            function Protocol() {
                var gfg = location.protocol;
                alert("protocol is: " + gfg);
            }
        </script>
    </head>
    <body>
        <div id = "Gfg">
                <h1>GeeksforGeeks</h1>
        </div>
        <p>Click to know the protocol of current URL.</p>
        <button onclick = "Protocol()">Protocol</button>
    </body>
</html>                    

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Output:
protocol



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