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General-purpose programming languages — from first principles to real, runnable projects.
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- JavaScript Tutorial
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Build modern websites and web apps with HTML, CSS, and JavaScript frameworks.
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Databases
Store, query, and scale data with both SQL and NoSQL systems.
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Ship and operate software reliably with containers, orchestration, and CI/CD.
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Data Science
Analyze, model, and visualize data with Python's scientific computing stack.
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Data sciencePandas Tutorial
Wrangle tabular data with Pandas — DataFrames, filtering, grouping, and joins.
DevopsDocker Tutorial
Containerize an app — images, Dockerfile, volumes, and docker-compose.
DatabasesSQL Tutorial
Query relational data — SELECT, JOIN, GROUP BY, and indexes, with runnable examples.
LanguagesPython Tutorial
Learn Python from scratch — syntax, data structures, functions, and a real command-line project you can run today.
Web developmentHTML & CSS Tutorial
Build and style your first web page — semantic HTML, the box model, Flexbox, and responsive layout.
DevopsKubernetes Tutorial
Orchestrate containers — pods, deployments, services, and a scalable app.
Data scienceNumPy Tutorial
Fast numeric computing with NumPy — arrays, broadcasting, and vector math.
DatabasesPostgreSQL Tutorial
A practical PostgreSQL guide — data types, JSONB, transactions, and performance tips.