React
What Is React, and Why Does Everyone Build Components?
React lets you build a UI out of small, reusable pieces instead of one giant tangle of markup and jQuery.
Master Spring Boot, Java & Bootstrap — then ace the interview.
In-depth, example-driven tutorials paired with real interview questions for freshers, experienced engineers, and modern AI roles.
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Spring Boot
Build production-grade Java apps with Spring Boot.
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Java
Core Java, OOP, collections, concurrency and more.
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Bootstrap
Responsive UI with the Bootstrap 5 framework.
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Python
Clean, readable code for scripting, data and everything in between.
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JavaScript
The language of the web: interactive pages, Node and modern apps.
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C++
Fast, low-level programming with full control over memory and performance.
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React
Build fast, component-based user interfaces with the React library.
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Docker
Package, ship and run applications as portable containers.
Latest
Fresh tutorials
React
JSX and Your First React Components
JSX looks like HTML but it is JavaScript underneath, and composing small components is how every React app is built.
React
Props and the useState Hook: Making Components Interactive
Props flow data down into a component; state is the memory a component keeps for itself and can change over time.
React
Rendering Lists and Handling Events in React
Almost every real UI is a list of something — this is how React renders arrays and reacts to clicks and input.
React
useEffect and Fetching Data From a Real API
useEffect is how a component reaches outside itself — timers, subscriptions, and fetching data from a real backend.
React
Real Project: Building a Todo App With React
A complete, working todo app built from scratch — the classic first real React project, done properly.
React
Real Project: A Weather Dashboard That Talks to a Live API
A second real project: a small weather dashboard that searches a city and fetches live results from an external API.
Docker
What Is Docker, and Why Should You Care?
Docker packages an app with everything it needs to run, so it behaves the same on your laptop, a teammate's machine, and the server.
Docker
Writing Your First Dockerfile
A Dockerfile is a short recipe describing how to build your image, one instruction at a time.
Interview
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Fresher questions
Core concepts every entry-level candidate should know.
128
Experienced questions
Architecture, performance and deep-dive scenarios.
51
AI interview questions
System design and ML/AI-focused engineering questions.
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