JavaScript - Simple Image Shuffle

Submitted by razormist on Tuesday, March 19, 2019 - 21:56.
In this tutorial we will create a Simple Image Shuffle using JavaScript. This code will shuffle the image order in a different position when clicked. The process use JavaScript for loop to contain an array and rearrange the index position of an array. You can apply this script to your system that use image gallery, this 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:

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. 
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. 	<head>
  4. 		<meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
  5. 		<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
  6. 	</head>
  7. <body>
  8. 	<nav class="navbar navbar-default">
  9. 		<div class="container-fluid">
  10. 			<a class="navbar-brand">Sourcecodester</a>
  11. 		</div>
  12. 	</nav>
  13. 	<div class="col-md-3"></div>
  14. 	<div class="col-md-6 well">
  15. 		<h3 class="text-primary">JavaScript - Simple Image Shuffle</h3>
  16. 		<hr style="border-top:1px dotted #ccc;"/>
  17. 		<div class="col-md-1">
  18. 		</div>
  19. 		<div class="col-md-10">
  20. 			<button class="btn btn-primary" type="button" onclick="shuffle()">Shuffle</button>
  21. 			<br /><br />
  22. 			<div id="result" style="border:1px solid #ccc; padding:20px;"></div>
  23. 		</div>
  24. 	</div>
  25. <script src="js/script.js"></script>	
  26. </body>
  27. </html>

Creating the Script

This code contains the script of the application. This code will shuffle the image order when the user click the button. 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 
  1. shuffle();
  2.  
  3. function shuffleArray(arr) {
  4.     for (var i = 0, shuffled = [], randomIndex = 0; i < arr.length; i++) {
  5.         randomIndex = Math.floor(Math.random() *  arr.length);
  6.         while (shuffled.indexOf(arr[randomIndex]) !== -1) {
  7.             randomIndex = Math.floor(Math.random() *  arr.length);
  8.         }
  9.        shuffled.push(arr[randomIndex]);
  10.     }
  11.  
  12. 	return shuffled;
  13. }
  14.  
  15. function shuffle(){
  16. 	var arr = ["image1.jpg", "image2.jpg", "image3.jpg", "image4.jpg", "image5.jpeg", "image6.jpg"];
  17. 	var html = "";
  18. 	shuffleArray(arr).forEach(function(item){
  19. 		html += "<img src='images/"+item+"' width='130' height='130' style='margin:10px; float:left;'>";
  20. 	})
  21. 	html += "<br style='clear:both;'/>";
  22.  
  23. 	document.getElementById('result').innerHTML = html;
  24. }
There you have it we successfully created a Simple Image Shuffle 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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