Day Javascript Introduction

Get to know JavaScript

JavaScript is a high-level interpreted programming language that is widely used to build interactive and dynamic websites.

It is one of the core technologies of the Web, alongside HTML and CSS.

HTML builds web content, CSS styles it, and JavaScript adds behavior and interactivity.

Why choose JavaScript?

JavaScript is one of the most popular and widely used programming languages ​​in the world, especially in web development, and here’s why:

1. Cross-platform operation
2. Client interactivity
3. Rich ecosystem and libraries
4. Huge developer community
5. Asynchronous Programming
6. Flexibility
7. Easy to learn and use
8. Full stack development (single language)
9. In line with modern web development trends
10. Huge employment demand and career development opportunities
11. Continuous development and evolution

JavaScript application:

1. Web front-end development
2. Backend development (server side)
3. Mobile Application Development
4. Game Development
5. Desktop Application Development
6. Internet of Things (IoT)
7. Machine Learning and Artificial Intelligence
8. Data Visualization
9. Web Automation and Scripting
10. Virtual Reality and Augmented Reality
11. Blockchain and Cryptocurrency

How to use JavaScript in HTML:

There are two main ways to include JavaScript in HTML documents:

Inline JavaScript: directly within an HTML tag. External JavaScript: Link to an external .js file.

Use inline JavaScript in HTML:

You can use onclick, onmouseover, onchange and other event attributes to add JavaScript code directly in HTML elements. You can also include JavaScript code inside <script></script> tags.

Use external JavaScript in HTML:

For better code organization, it is common to separate JavaScript from HTML and place it in an external .js file. This is especially useful for large projects, as it makes your code more maintainable.

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