JavaScript Introduction

What is JavaScript?

JavaScript is a high-level, interpreted scripting language used to create dynamic and interactive web pages. It enables client-side logic such as form validation, event handling, and animation.

History and Evolution

JavaScript was created in 1995 by Brendan Eich for Netscape. It became an official standard under the ECMAScript specification. JavaScript has grown to support both client-side and server-side development.

Why Learn JavaScript?

• It's the foundation of all interactive websites
• Used with HTML and CSS to build full-stack applications
• In-demand skill across industries
• Supports frameworks like React, Angular, Vue

JavaScript Example

<script>
  console.log("Hello, JavaScript!");
</script>

This prints a message to the browser's console.

Best Practices

• Use external JS files with the src attribute
• Write clean, readable code
• Prefer let and const over var

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