Exercises

Practice Your Skills

Fill-in-the-blank exercises to reinforce what you've learned.

HTML & CSS

HTML

The language of the web

CSS

Style your web pages beautifully

Bootstrap

Responsive CSS framework

JavaScript & Frameworks

JavaScript

The programming language of the web

React

Build UI with components

TypeScript

JavaScript with superpowers

Node.js

Server-side JavaScript runtime

jQuery

Fast, small JavaScript library

Backend & Server

Python

Simple, powerful, versatile

Java

Write once, run anywhere

PHP

Server-side web scripting

C

Low-level systems programming

C++

Systems & application programming

C#

Powerful .NET development

Go

Fast, simple, reliable

Rust

Memory-safe systems programming

Databases

SQL

Query and manage databases

MongoDB

NoSQL document database

PostgreSQL

Advanced open-source database

DevOps & Tools

Git

Version control for everyone

Data Structures & Algorithms

DSA

Data structures & algorithms

AI Development

AI Fundamentals

Core AI concepts explained

Generative AI

Create with AI models

Prompt Engineering

Craft effective AI prompts

Claude API

Build with Anthropic's Claude

OpenAI API

Build with GPT and beyond

RAG Pipelines

Retrieval-augmented generation

Vector Databases

Store and search embeddings

AI Agents

Build autonomous AI systems

LangChain

Framework for LLM applications

Gemini API

Build with Google's multimodal AI

Product, Ops & Strategy

Environments & Security

Ship Safely — Dev, Staging, Prod & Everything Between

Testing

Ship Confidently — From Unit Tests to AI-Powered QA