JavaScript Function

 


A JavaScript function is a block of code designed to perform a particular task.


A JavaScript function is executed when "something" invokes it (calls it).


<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        // document.write("Seema Sharma <br>");
        // document.write("Channel Name Adisma <br>");
        // document.write("Namaste India <br>")
        // document.write("<hr>")

        function display() {
            document.write("Seema Sharma <br>");
            document.write("Channel Name Adisma <br>");
            document.write("Namaste India <br>")
            document.write("<hr>")
        }

        display();
        display();
        display();
        display();
        display();


        function userDetails() {
            console.log("userName  = Seema ");
            console.log("userId  = 001 ");
            console.log("userAddress   = India ");
        }
        userDetails(a, b);
         userDetails( 10, 20);
          userDetails();


    </script>

</body>

</html>

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