What Are AI Agents? A Beginner's Guide to Agentic AI
AI agents don't just answer questions — they take actions to reach a goal. Here's how agentic AI works, in plain English, with real examples.
Hands-on tutorials and clear explainers on AI, Python, Java, React, DevOps and the tech that matters.
Meet Codepeacock — the studio behind TechUpdateAI. We design and build websites, SaaS platforms and AI-powered products for businesses worldwide.
AI agents don't just answer questions — they take actions to reach a goal. Here's how agentic AI works, in plain English, with real examples.
Samsung unveiled its 2026 foldables at Galaxy Unpacked — the Galaxy Z Fold 8, a new Z Fold 8 Ultra, and the Z Flip 8. Here are the prices, specs and release dates.
RAG lets an AI answer using YOUR documents instead of guessing. Here's how retrieval-augmented generation works and when to use it.
Vector databases store meaning, not just text. Learn what they are, how similarity search works, and why every AI app seems to use one.
Should you tweak your prompt, add RAG, or fine-tune the model? A practical decision guide for getting better results from AI.
Spring Boot Mastery Course Spring Boot Mastery Overview Modules Module 1: Core Module 2: REST APIs Module 3: Data Module 4: Advanced Project Capstone Project Extras Interview Prep
1. 🧠 Key Concepts a) State: A Component’s “Memory” Think of your component from Step 1, <ProfileCard>. It was “dumb.” It only knew what its parent (App) told it via props. It could
1. 🧠 Key Concepts a) What is React? At its core, React is a JavaScript library for building user interfaces. Its two main ideas are: b) Creating Your First App (Vite) We’ll use a t
1. 🧠 Key Concept: Conditional Rendering Your components often need to show different things based on different conditions. This isn’t a special React feature, but rather a pattern
1. 🧠 Key Concepts a) What is a “Side Effect”? A React component’s main job is to be a “pure” function: it takes props and state and returns JSX. A side effect is anything your comp
This step is where you go from a “working” app to a “fast” and “professional” app. This is an intermediate-to-advanced topic, but it’s one of the most important for building high-q
1. 🧠 Key Concepts a) Client-Side vs. Server-Side Routing This is the most important concept to understand. b) The Library: react-router-dom React itself does not include routing. r
1. 🧠 Key Concept: The Problem of “Prop Drilling” Imagine your app’s component structure looks like this: The <App> component has the user state. But only the <Avatar> component act
1. 🧪 Testing with Jest & React Testing Library This is the most critical professional skill on the list. Writing tests ensures you can add features or refactor code without acciden
Content: Explain why you’d use these. Show the “before” (useEffect mess) and “after” (useQuery simplicity). Show the “before” (useContext problem) and “after” (Zustand‘s surgical u
React isn’t a new language; it’s a JavaScript library. It uses modern JavaScript features heavily. If you understand these, React will make 10x more sense. a) Modern Variables: let
Step 0: The Foundation (Prerequisites) Before writing any React code, you must be comfortable with modern JavaScript. Go to Details Step 1: React Fundamentals (The “What”) Goal: Un
Spring Boot Security trips up even experienced developers with its layered complexity and subtle configuration requirements. This guide targets Java developers, Spring Boot practit
Getting ready for a Java interview can feel overwhelming, especially when you’re not sure what questions might come your way. This comprehensive guide covers Java interview questio
Most developers fall into the same full-stack developer trap without even knowing it exists. You’re building React apps, writing Spring Boot APIs, and calling yourself a full-stack
DevOps and Kubernetes have become the backbone of modern software development, helping teams deploy applications faster and manage them at scale. This guide is designed for softwar
Python has become the backbone of the generative AI revolution, powering everything from ChatGPT to DALL-E. This guide is for developers, data scientists, and tech enthusiasts who
Java 25 brings exciting new Java 25 features that will make your development workflow smoother and more efficient. This guide is perfect for Java developers, software engineers, an
Python has ruled data science for over a decade, but 2025 brings new questions about its future. Real-time analytics demands are pushing organizations to reconsider their tech stac
Is Python the Future of Programming? A Reality Check for Developers and Tech Professionals Python has become the go-to language for millions of developers worldwide, but will Pytho
Artificial intelligence is making a huge leap from simply creating content to taking real action in the business world. Agentic AI systems represent this exciting shift, moving bey
Web, SaaS & AI development studio.
Meet Codepeacock — the studio behind TechUpdateAI. We design and build websites, SaaS platforms and AI-powered products for businesses worldwide.