JavaScript

What is JavaScript ..?

Javascript is the both scripting as well as programming language

Why we need javascript
Assignment questions:

History of Javascript :

JavaScript was developed by Brendan Eich while he was working at Netscape company .
The language was originally developed under the name "Mocha," later renamed to "LiveScript," and finally became "JavaScript.”
It was first released in September 1995 as part of Netscape Navigator 2.0
In 1996, Netscape submitted JavaScript to the European Computer Manufacturers Association (ECMA) for standardization. This led to the creation of the ECMAScript specification.
The stable version of Javascript is ES6
The latest version of JavaScript is **ECMAScript 2024 (ES15)**

Ways to apply javascript or methods to write javascript :

Internal way :
- Internal JavaScript refers to writing JavaScript code directly within an HTML document, typically enclosed in <script> tags.
- This method is useful for small scripts or when you want to include JavaScript code that is specific to a particular HTML page.

Example :

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Internal JavaScript Example</title>
  </head>
  <body>
    <button onclick="showMessage()">Click Me</button>
    <script>
      function showMessage() {
        alert("Hello from internal JavaScript!");
      }
    </script>
  </body>
</html>

2. External way :

External JavaScript involves writing JavaScript code in a separate file with a .js extension. This file is then linked to the HTML document using the <script> tag with the src attribute.
This method is ideal for larger scripts or when the same JavaScript code needs to be reused across multiple HTML pages. It helps in keeping the HTML clean and organized.

Example :