JavaScript - Simple Generate Person Name

Submitted by razormist on Thursday, July 11, 2019 - 10:10.

In this tutorial we will create a Simple Generate Person Name using JavaScript. This code will generate a random person name when the user click the button. The code itself use a onclick() function to launch a method that can generate a random person name using Math.floor() and passing an argument Math.random() multiply by array length in order to display a random array index value. You can apply this script to your code, it is a user-friendly program feel free to modify it. We will use JavaScript to add some new feature to the website interface by actually written into an HTML page. It is what gives your page a different interactive elements and animation that engage a user. .

Getting Started:

First you have to download bootstrap framework, this is the link for the bootstrap that I used for the layout design https://getbootstrap.com/.

The Main Interface

This code contains the interface of the application. To create this just write these block of code inside the text editor and save this as index.html.

<!DOCTYPE html>
<html lang="en">
        <head>
                <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
                <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
        </head>
<body>
        <nav class="navbar navbar-default">
                <div class="container-fluid">
                        <a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
                </div>
        </nav>
        <div class="col-md-3"></div>
        <div class="col-md-6 well">
                <h3 class="text-primary">JavaScript - Simple Generate Person Name</h3>
                <hr style="border-top:1px dotted #ccc;"/>
                <div class="col-md-3"></div>
                <div class="col-md-6">
                        <div id="result" style="border:1px solid #000; height:95px; margin-bottom:20px;"><h3 style="margin:40px;">What's my name?</h3></div>
                        <center><button class="btn btn-primary" onclick="genName()">Person Name</button></center>
                </div>
        </div>
<script src="js/script.js"></script>
</body>
</html>

Creating the Script

This code contains the script of the application. This code will generate a random person name when the button is clicked. To do this just copy and write these block of codes as shown below inside the text editor and save it as script.js inside the js directory

function genName(){
        var firstname = ["Tony", "Bruce", "Peter", "Steve"];
        var lastname= ["Stark", "Banner", "Parker", "Roger"];
        var rand_first = Math.floor(Math.random()*firstname.length); 
        var rand_last = Math.floor(Math.random()*lastname.length); 
        var result=document.getElementById('result');
        result.removeAttribute('style');
        result.innerHTML= "<div class='alert alert-info'><center><h2>"+firstname[rand_first]+" "+lastname[rand_last]+"</h2></center></div>";
        
}

There you have it we successfully created a Simple Generate Person Name using JavaScript. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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