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 information. The protocol property sets or returns the protocol of the current URL, including the colon (:).
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 systems.
- https: The Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP) for secure communication and is widely used on the Internet.
- file: It is used for files or in the local server system.
- mailto: It is used in the mail system.
Return Value: It returns a string(The protocol property returns the protocol of the current URL, including the colon (:)).
Example:Â
HTML
<body style="align-items: center; margin-left: auto;                        justify-content: center;">    <div>        <h1 id="Gfg" style="color: green;">            neveropen          </h1>        <p>            Click to know the protocol of current URL.          </p>        <button onclick="Protocol()">            Protocol          </button>    </div>    <script>      function Protocol() {          var gfg = location.protocol;          alert("protocol is: " + gfg);      }    </script></body> |
Output:
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