✅ Advanced Coding Concepts You Should Know 💻🚀
Once you’re confident with the basics, here’s what to explore next:
1️⃣ Object-Oriented Programming (OOP)
Structure code with objects and classes.
- Concepts: Class, Object, Inheritance, Polymorphism, Encapsulation
```python
class Animal:
def speak(self):
print("Sound")
```
2️⃣ Recursion
A function calling itself to solve a problem.
Great for problems like factorial, Fibonacci, tree traversal.
3️⃣ Time & Space Complexity (Big O)
Measure how fast your code runs and how much memory it uses.
Common complexities: O(1), O(n), O(log n), O(n²)
4️⃣ Advanced Data Structures
- Linked List
- Tree (Binary, BST)
- Graph
- Heap
- Trie
5️⃣ Algorithms
- Searching: Binary Search
- Sorting: Quick Sort, Merge Sort
- Graph Algorithms: DFS, BFS, Dijkstra’s
- Dynamic Programming (DP)
6️⃣ APIs & JSON
Use external data or connect apps.
```python
import requests
res = requests.get("
api.example.com/data")
```
7️⃣ Unit Testing
Test your code automatically.
```python
import unittest
class TestApp(unittest.TestCase):
def test_add(self):
self.assertEqual(add(2, 3), 5)
```
8️⃣ Databases & SQL
Store and query data.
- Learn SELECT, JOIN, GROUP BY
- Use SQLite, PostgreSQL, or MySQL
9️⃣ Dev Tools
- Version Control: Git & GitHub
- IDEs: VS Code, PyCharm
- Terminal & CLI skills
🔟 System Design (Intro)
Understand how large-scale apps are built — like Instagram, Netflix, etc.
💡 Level up by solving DSA problems, contributing to open-source, and building full-stack projects.
💬 Tap ❤️ for more!