JavaScript
The engine of the modern web. From simple DOM manipulation to complex backend logic with Node.js, JS is everywhere.
Key Concepts
- DOM Manipulation: Changing HTML and CSS on the fly.
- Async/Await: Handling API calls and asynchronous operations.
- ES6+ Syntax: Arrow functions, destructuring, and modules.
document.getElementById('btn').addEventListener('click', () => {
console.log('Hello World');
});
Python
Known for its readability and massive ecosystem of libraries. Perfect for beginners and experts alike.
Use Cases
- Data Science: Pandas, NumPy, Matplotlib.
- Web Development: Django, Flask, FastAPI.
- Automation: Scripting boring tasks.
def greet(name):
return f"Hello, {name}!"
print(greet("Developer"))
HTML5
HyperText Markup Language. It provides the structure and semantic meaning to your web content.
Elements
- Semantic Tags: <header>, <nav>, <article>.
- Forms: Input types, validation, and labels.
- Multimedia: <video>, <audio>, <canvas>.
<article>
<h1>My First Post</h1>
<p>This is a paragraph.</p>
</article>
CSS3
Cascading Style Sheets. It dictates how HTML elements are displayed on screen, paper, or in other media.
.container {
display: flex;
justify-content: center;
align-items: center;
}
C++
A powerful general-purpose programming language. It is used to develop operating systems, browsers, games, and more.
#include <iostream>
int main() {
std::cout << "Hello World!";
return 0;
}
AWS
Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services.
- EC2: Virtual servers in the cloud.
- S3: Scalable storage.
- Lambda: Run code without thinking about servers.