JavaScript - Simple Text Resizer

Submitted by razormist on Saturday, June 15, 2019 - 08:09.
In this tutorial we will create a Simple Text Resizer using JavaScript. This code can change the font size to by just dragging the slider button. The code use oninput to initiate a function when the slider has been move in order to dynamically change the text size by modifying the properties of it. Feel free to modify and apply it in your system, this is a user-friendly kind of program We will be using JavaScript as a server-side scripting language because It gives a greater control of your web page and extend its capability in a modern way approach. It is written in HTML or as an external sourcing to add some necessary features in your website.

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. 
  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" href="https://sourcecodester.com">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 Text Resizer</h3>
  16. 		<hr style="border-top:1px dotted #ccc;"/>
  17. 		<div class="col-md-2"></div>
  18. 		<div class="col-md-8">
  19. 			<center><h2 class="text-success" id="result">SOURCECODESTER</h2></center>
  20. 			<br />
  21. 			<div style="border:1px solid #000; padding:10px; border-radius:12px;">
  22. 				<input type="range" min="0" max="50" value="12" oninput="resizeText(this.value);"/>
  23. 			</div>
  24. 			<br />
  25. 			<div class="form-inline">
  26. 				<label>Value</label>
  27. 				<input type="text" size="1" id="display" class="form-control" disabled="disabled" />
  28. 			</div>
  29. 		</div>
  30. 	</div>
  31. <script src="js/script.js"></script>	
  32. </body>	
  33. </html>

Creating the Script

This code contains the script of the application. This code will dynamically change the text size when the slider is moved. To do this just copy and write these block of codes inside the text editor, then save it as script.js inside the js folder. 
  1. document.getElementById("display").value="12px";
  2. document.getElementById("result").style.fontSize=val+"px";
  3. function resizeText(val){
  4. 	document.getElementById("display").value=val+"px";
  5. 	document.getElementById("result").style.fontSize=val+"px";	
  6. }
There you have it we successfully created a Simple Text Resizer 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!

Tags

Add new comment

About text formats
  • 75 views