In this tutorial we will create a How to Create a Lottery Number Generator in JavaScript. This tutorial purpose is to teach you how to create a lottery game. This will tackle all the important functionality that allow you to generate a lottery number. I will provide a sample program to show the actual coding of this tutorial.
This tutorial is simple and easy to understand just follow the instruction I provided and you can do it without a problem. This program can be use to any system or application if you display a random data. I will give my best to provide you the easiest way of creating this program Lottery Number Generator. So let's do the coding.
Here is the link for the template that i used for the layout design https://getbootstrap.com/.
<!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"> </div> </nav> <div class="col-md-6 well"> <hr style="border-top:1px dotted #ccc;"/> <div class="col-md-6"> </div> <div class="col-md-4"> </div> </div> </body> </html>
function rollNumber(){ var set = []; while(set.length < 6){ var r = Math.floor(Math.random() * 58) + 1; if(set.indexOf(r) === -1) set.push(r); } displayResult(set); } function displayResult(set){ set.join(", "); document.getElementById('result').innerHTML="<center><h1 class='text-primary'>"+set+"</h1></center>"; }
In the code above we just create a method called rollNumber(), this function will generate a random lottery number when triggered. Inside the function we create a blank array object that will hold the numbers. Then we use a loop that will loop through to increment the numbers to 6. We use the function Math.floor() to generate a random number base on the set condition.
The How to Create a Lottery Number Generator in JavaScript source code that I provide can be download below. Please kindly click the download button.
There you have it we successfully created How to Create a Lottery Number Generator in 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!
More Tutorials for JavaScript Language