CodingNow 2.0 Notes
Free, example-driven notes across Python, SQL, HTML, JavaScript, Machine Learning, Deep Learning, Generative AI and Agentic AI — written by CodingNow 2.0's mentors. Pick a subject and start learning.
Agentic AI
Autonomous, tool-using AI agents
20 topics
Deep Learning
Neural networks & modern AI
490 topics
HTML
Structure, semantics, forms and accessibility for the modern web
78 topics
Machine Learning
Algorithms, math, Python and real ML projects
247 topics
Python
History to OOPs & Exception Handling
194 topics
SQL
Query, join, and manage relational data
67 topicsData Analytics
Excel, SQL, Python, Power BI & statistics for a job-ready data analyst career
88 topicsCSS
Style and lay out web pages — selectors, box model, flexbox, grid and responsive design
195 topicsJavaScript
The language of the web — syntax, DOM, events, async and modern JavaScript
269 topicsJava
Core Java — syntax, OOP, collections, I/O and advanced topics
121 topicsC
Core C — syntax, pointers, memory, structures and systems programming
99 topicsC++
Core C++ — OOP, templates, STL, memory and modern syntax
118 topicsAWS
AWS Cloud Practitioner — compute, networking, storage, security and exam prep
94 topicsReact
Build UIs with components, JSX, props, hooks and modern React patterns
54 topicsMySQL
Relational SQL — queries, joins, constraints, views and prepared statements
64 topicsDjango
Python web framework — models, templates, QuerySets, PostgreSQL and deployment
55 topicsNumPy
Python numerical computing — arrays, indexing, slicing, random and ufuncs
44 topicsPandas
Python data analysis — Series, DataFrames, CSV/JSON, cleaning and plotting
15 topicsNode.js
JavaScript runtime — modules, HTTP, Express, databases and Raspberry Pi
105 topicsGit
Version control — commits, branches, remotes, GitHub and collaboration
49 topicsPostgreSQL
Advanced SQL database — tables, joins, constraints and query syntax
42 topicsMongoDB
Document database — queries, aggregations, indexes and Node.js drivers
27 topicsAI
Machine learning, TensorFlow.js, graphics, history, math and statistics
55 topics
Generative AI
Prompting and text-to-text models — ChatGPT, Bard and AI chatbots
6 topicsCybersecurity
Cyber crime, networking, attacks, defence and incident response
17 topicsData Science
Data, Python, statistics, linear regression and case studies
25 topicsReady to go from notes to a real career?
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Search-ready note collections for every popular technology — Python notes, SQL notes, Machine Learning notes, Deep Learning notes, Generative AI notes, Agentic AI notes, HTML and JavaScript notes. Each subject starts from basics and goes up to interview level, with short explanations and runnable code examples.
- Agentic AI Notes (20 topics)
- Deep Learning Notes (490 topics)
- HTML Notes (78 topics)
- Machine Learning Notes (247 topics)
- Python Notes (194 topics)
- SQL Notes (67 topics)
- Data Analytics Notes (88 topics)
- CSS Notes (195 topics)
- JavaScript Notes (269 topics)
- Java Notes (121 topics)
- C Notes (99 topics)
- C++ Notes (118 topics)
- AWS Notes (94 topics)
- React Notes (54 topics)
- MySQL Notes (64 topics)
- Django Notes (55 topics)
- NumPy Notes (44 topics)
- Pandas Notes (15 topics)
- Node.js Notes (105 topics)
- Git Notes (49 topics)
- PostgreSQL Notes (42 topics)
- MongoDB Notes (27 topics)
- AI Notes (55 topics)
- Generative AI Notes (6 topics)
- Cybersecurity Notes (17 topics)
- Data Science Notes (25 topics)
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