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Learn JavaScript in 14 Days:

Part 1:

๐Ÿ’ป Day 1 - Learn JavaScript Basics:
Start with understanding variables, data types, and basic syntax.

๐Ÿ“Š Day 2 - Master Operators and Expressions:
Get comfortable using arithmetic, comparison, and logical operators.

โš–๏ธ Day 3 - Dive into Conditional Statements:
Learn how to use if, else if, else, and switch for decision-making.

โ™ป๏ธ Day 4 - Explore Loops:
Understand how for, while, and do-while loops work.

๐Ÿ”ง Day 5 - Work with Functions:
Learn how to define and call functions, pass parameters, and return values.

๐Ÿ“ฆ Day 6 - Introduction to Arrays:
Explore how to create arrays and manipulate them with methods like push(), pop(), and map().

๐Ÿ“œ Day 7 - Object Basics:
Learn how to create and work with JavaScript objects, properties, and methods.

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10 Machine Learning Concepts You Must Know

โœ… Supervised vs Unsupervised Learning โ€“ Understand the foundation of ML tasks
โœ… Bias-Variance Tradeoff โ€“ Balance underfitting and overfitting
โœ… Feature Engineering โ€“ The secret sauce to boost model performance
โœ… Train-Test Split & Cross-Validation โ€“ Evaluate models the right way
โœ… Confusion Matrix โ€“ Measure model accuracy, precision, recall, and F1
โœ… Gradient Descent โ€“ The algorithm behind learning in most models
โœ… Regularization (L1/L2) โ€“ Prevent overfitting by penalizing complexity
โœ… Decision Trees & Random Forests โ€“ Interpretable and powerful models
โœ… Support Vector Machines โ€“ Great for classification with clear boundaries
โœ… Neural Networks โ€“ The foundation of deep learning

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Data Science & Machine Learning Resources: https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
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Python Roadmap for 2025: Complete Guide

1. Python Fundamentals
1.1 Variables, constants, and comments.
1.2 Data types: int, float, str, bool, complex.
1.3 Input and output (input(), print(), formatted strings).
1.4 Python syntax: Indentation and code structure.

2. Operators
2.1 Arithmetic: +, -, *, /, %, //, **.
2.2 Comparison: ==, !=, <, >, <=, >=.
2.3 Logical: and, or, not.
2.4 Bitwise: &, |, ^, ~, <<, >>.
2.5 Identity: is, is not.
2.6 Membership: in, not in.

3. Control Flow
3.1 Conditional statements: if, elif, else.
3.2 Loops: for, while.
3.3 Loop control: break, continue, pass.

4. Data Structures
4.1 Lists: Indexing, slicing, methods (append(), pop(), sort(), etc.).
4.2 Tuples: Immutability, packing/unpacking.
4.3 Dictionaries: Key-value pairs, methods (get(), items(), etc.).
4.4 Sets: Unique elements, set operations (union, intersection).
4.5 Strings: Immutability, methods (split(), strip(), replace()).

5. Functions
5.1 Defining functions with def.
5.2 Arguments: Positional, keyword, default, *args, **kwargs.
5.3 Anonymous functions (lambda).
5.4 Recursion.

6. Modules and Packages
6.1 Importing: import, from ... import.
6.2 Standard libraries: math, os, sys, random, datetime, time.
6.3 Installing external libraries with pip.

7. File Handling
7.1 Open and close files (open(), close()).
7.2 Read and write (read(), write(), readlines()).
7.3 Using context managers (with open(...)).

8. Object-Oriented Programming (OOP)
8.1 Classes and objects.
8.2 Methods and attributes.
8.3 Constructor (init).
8.4 Inheritance, polymorphism, encapsulation.
8.5 Special methods (str, repr, etc.).

9. Error and Exception Handling
9.1 try, except, else, finally.
9.2 Raising exceptions (raise).
9.3 Custom exceptions.

10. Comprehensions
10.1 List comprehensions.
10.2 Dictionary comprehensions.
10.3 Set comprehensions.

11. Iterators and Generators
11.1 Creating iterators using iter() and next().
11.2 Generators with yield.
11.3 Generator expressions.

12. Decorators and Closures
12.1 Functions as first-class citizens.
12.2 Nested functions.
12.3 Closures.
12.4 Creating and applying decorators.

13. Advanced Topics
13.1 Context managers (with statement).
13.2 Multithreading and multiprocessing.
13.3 Asynchronous programming with async and await.
13.4 Python's Global Interpreter Lock (GIL).

14. Python Internals
14.1 Mutable vs immutable objects.
14.2 Memory management and garbage collection.
14.3 Python's name == "main" mechanism.

15. Libraries and Frameworks
15.1 Data Science: NumPy, Pandas, Matplotlib, Seaborn.
15.2 Web Development: Flask, Django, FastAPI.
15.3 Testing: unittest, pytest.
15.4 APIs: requests, http.client.
15.5 Automation: selenium, os.
15.6 Machine Learning: scikit-learn, TensorFlow, PyTorch.

16. Tools and Best Practices
16.1 Debugging: pdb, breakpoints.

16.2 Code style: PEP 8 guidelines.
16.3 Virtual environments: venv.
16.4 Version control: Git + GitHub.

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SQL Cheatsheet ๐Ÿ“

This SQL cheatsheet is designed to be your quick reference guide for SQL programming. Whether youโ€™re a beginner learning how to query databases or an experienced developer looking for a handy resource, this cheatsheet covers essential SQL topics.

1. Database Basics
- CREATE DATABASE db_name;
- USE db_name;

2. Tables
- Create Table: CREATE TABLE table_name (col1 datatype, col2 datatype);
- Drop Table: DROP TABLE table_name;
- Alter Table: ALTER TABLE table_name ADD column_name datatype;

3. Insert Data
- INSERT INTO table_name (col1, col2) VALUES (val1, val2);

4. Select Queries
- Basic Select: SELECT * FROM table_name;
- Select Specific Columns: SELECT col1, col2 FROM table_name;
- Select with Condition: SELECT * FROM table_name WHERE condition;

5. Update Data
- UPDATE table_name SET col1 = value1 WHERE condition;

6. Delete Data
- DELETE FROM table_name WHERE condition;

7. Joins
- Inner Join: SELECT * FROM table1 INNER JOIN table2 ON table1.col = table2.col;
- Left Join: SELECT * FROM table1 LEFT JOIN table2 ON table1.col = table2.col;
- Right Join: SELECT * FROM table1 RIGHT JOIN table2 ON table1.col = table2.col;

8. Aggregations
- Count: SELECT COUNT(*) FROM table_name;
- Sum: SELECT SUM(col) FROM table_name;
- Group By: SELECT col, COUNT(*) FROM table_name GROUP BY col;

9. Sorting & Limiting
- Order By: SELECT * FROM table_name ORDER BY col ASC|DESC;
- Limit Results: SELECT * FROM table_name LIMIT n;

10. Indexes
- Create Index: CREATE INDEX idx_name ON table_name (col);
- Drop Index: DROP INDEX idx_name;

11. Subqueries
- SELECT * FROM table_name WHERE col IN (SELECT col FROM other_table);

12. Views
- Create View: CREATE VIEW view_name AS SELECT * FROM table_name;
- Drop View: DROP VIEW view_name;

Here you can find SQL Interview Resources๐Ÿ‘‡
https://t.iss.one/DataSimplifier

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Hope it helps :)
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