JavaScript Basics

By In Services

Welcome back! Today, we’re introducing JavaScript, a powerful programming language that can bring your webpages to life. We’ll cover the basics to get you started.

What is JavaScript?

JavaScript is a versatile, client-side scripting language used to create interactive and dynamic web content. It runs directly in the web browser, allowing you to manipulate HTML and CSS in real-time.

Adding JavaScript to Your Webpage

You can include JavaScript in your HTML file using the <script> tag. Here’s a simple example:

<!DOCTYPE html>
<html>
<head>
    <title>JavaScript Basics</title>
</head>
<body>
    <h1>Welcome to JavaScript Basics</h1>
    <button onclick="displayMessage()">Click Me</button>
    <script>
        function displayMessage() {
            alert("Hello, World!");
        }
    </script>
</body>
</html>

In this example, clicking the button triggers a JavaScript function that displays an alert message.

JavaScript Variables

Variables store data values. You can declare a variable using the var, let, or const keywords. Here’s an example:

<script>
    let message = "Hello, World!";
    console.log(message);
</script>

This code declares a variable named message and logs its value to the console.

JavaScript Functions

Functions are blocks of code designed to perform a specific task. You can define a function and call it as needed. Here’s an example:

<script>
    function greet(name) {
        return "Hello, " + name + "!";
    }
    console.log(greet("Alice"));
</script>

This function, greet, takes a parameter name and returns a greeting message.

Conclusion

JavaScript is a powerful tool for creating dynamic and interactive web experiences. Stay tuned for more tutorials where we’ll explore advanced JavaScript concepts and techniques!

Related Posts