Introduction
JavaScript is a very popular scripting programming language introduced by Brendan Eich in 1995. This language was launched with the intention of helping developers in creating interactive, dynamic, and scalable websites, which can improve the user interaction with the website, and give better performance in all the different aspects of comparison.
JavaScript and JavaScript frameworks are commonly used with HTML and CSS in creating a responsive and dynamic website. This article will give you an idea of how to use the JavaScript programming language with HTML and CSS effectively in order to achieve good results.
Uses of the JavaScript Programming Language
Following is the list of uses of the JavaScript Programming language
- Web Applications
JavaScript is widely used in developing web applications. It creates a responsive website that can run on any device. It provides various features and functionalities to the web applications, including online shopping, social media, and productivity tools. Web applications built using HTML, CSS, and JavaScript provide better user interaction and data processing.
- Server Applications
For server-side communication, we use Node.js, which is a JavaScript runtime environment. Node.js manages network requests over HTTP, performs data processing, and enables real-time communication over the server. It performs the task of sending requests and receiving responses over the server very effectively, thus making JavaScript a popular choice among developers for both front-end and back-end development.
- Mobile Apps
JavaScript provides the support of frameworks that enable cross-platform development. This feature allows developers to write a single codebase that can be deployed on multiple platforms, such as iOS and Android, and thus saves time and resources from writing the code for different platforms.
- API Development
API, which stands for Application Programming Interface, provides a communication between the backend and frontend of a website. API development defines the methods and protocols for data exchange, allowing seamless integration and interaction between systems.
- Game Development
JavaScript is a popular choice among developers for developing web-based games. It provides the support of libraries like Phaser and Three.js for developing games, starting from simple quizzes to complex 3D animation games.
Use of JavaScript while Building a Website
How JavaScript interacts with HTML and CSS
HTML: HTML stands for Hypertext Markup Language, used to create the structure of a website. It can be defined as a blueprint for creating the content of web pages, like images, text, videos , and layout. HTML is the skeleton of a website. It interacts with CSS and JavaScript by storing the CSS and JavaScript files in its body. For example
<! – – HTML file storing the CSS file – – >
<link rel=”stylesheet” href =”style.css”>
CSS: CSS stands for Cascading Style Sheets. This file defines the design and outline of the website. The activities of CSS include adding colour, changing fonts, layout, etc. The CSS file is linked with HTML. Given below is an example of a CSS file.
< – – HTML – – >
<h1 class = “hero”>Welcome to Tpoint Tech</h1>
<! – – CSS – ->
<style>
.hero {
color: blue;
font-size: 35px;
text-align: center;
}
</style>
JavaScript: The use of JavaScript in web development is that it defines the action performed by a website when the user requests anything on the website, for example, clicking a button, filling a form, clicking on a menu button, etc. In simple words, JavaScript defines the behaviour of the website. The JavaScript file is also linked to HTML. Given below is an example of a JavaScript file.
<! – – HTML – ->
<button id=”btn”>Next Page</button>
<! – – JavaScript – ->
<script>
document.getElementById(“btn”).addEventListener(“click”, function() {
alert(“Page 2”);
});
</script>
Building a Simple Website using HTML, CSS, and JavaScript
Step 1: Create the structure of the website using HTML
<!DOCTYPE html>
<html lang = “en”>
<head>
<meta charset=”UTF-8″>
<meta name=”viewport” content= “width=device-width, initial-scale=1.0”>
<title>I build this website</title>
<link rel=”stylesheet” href=”style.css”>
</head>
<body>
<header>
<h1>Welcome to Tpoint Tech Website</h1>
</header>
<main>
<p>This is a simple website built with HTML, CSS, and JavaScript.</p>
<button id=”nextPage”>Next Page</button>
<p id=”page”></p>
</main>
<footer>
<p>© 2025 Tpoint Tech Website</p>
</footer>
<script src=”script.js”></script>
</body>
Output
Step 2: Create the outline of the website using CSS
body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
background-color: #f4f4f4;
color: #333;
text-align: center;
}
header {
background-color: #333;
color: white;
padding: 1em 0;
}
main {
padding: 20px;
}
button {
background-color: #007bff;
color: white;
padding: 10px 20px;
border: none;
border-radius: 5px;
cursor: pointer;
font-size: 16px;
margin-top: 15px;
}
button:hover {
background-color: #0056b3;
}
footer {
background-color: #333;
color: white;
padding: 1em 0;
position: fixed;
bottom: 0;
width: 100%;
}
Output
Step 3: To define the behaviour of the website, add a JavaScript file
document.getElementById(‘nextPage’).addEventListener(‘click’, function() {
document.getElementById(‘page’).textContent = ‘Button clicked! Welcome to our Website’;
});
Output
Conclusion
This article describes the building of a basic website using HTML, CSS, and JavaScript. It also describes the uses of the JavaScript Programming Language and how different files interact with each other in building a website.
I hope this article has provided you a valuable information about web development. If you are looking for more such kind of information, then I suggest you visit the Tpoint Tech Website, where you can find various articles about programming and other technology, as well along with working examples, interview questions, and an online compiler where you can run your code.
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