Hello World - In Javascript
Written by: Joseph Sardella
Creating a "Hello, World!" Program in JavaScript: A Beginner's Guide
Hello and welcome to this beginner's tutorial on JavaScript! If you're new to programming or just new to JavaScript, you're in the right place. In this tutorial, we'll walk you through creating your very first JavaScript program: the classic "Hello, World!".
JavaScript is one of the most popular and widely used programming languages today, especially in web development. With JavaScript, you can build interactive websites, mobile apps, desktop applications, and much more. But for now, let's start with the basics.
What you'll need:
- Web Browser: e.g., Google Chrome, Firefox, Safari
- Text Editor: e.g., Notepad for Windows, TextEdit for Mac, or any code editor of your choice
Let's get started!
1. Create a New HTML File
Open your text editor and create a new file. Save this file as hello.html
. This file will serve as our webpage where we'll run our JavaScript code.
2. Set Up the Basic HTML Structure
Before we write our JavaScript code, let's set up a basic HTML structure. Use the following code:
```html3. Add JavaScript to Your Page
There are multiple ways to add JavaScript to your webpage. For this tutorial, we'll use the <script>
tag:
4. Write the "Hello, World!" Program
Within the <script>
tags, type the following JavaScript:
javascript
alert('Hello, World!');
5. Run Your Program
Open your hello.html
file with any web browser. A popup alert box displaying the message "Hello, World!" should appear.
Wrapping Up
This simple "Hello, World!" program is a traditional introduction to a new programming language. It's a foundational step in your JavaScript journey. As you continue, you'll unlock the vast capabilities of JavaScript. Happy coding!