A.G. Sayyed

This document explains how to declare, traverse, and manage arrays in React components, including state management, rendering lists, and common array methods.

This document explains the principles, approaches, and tools for testing React components, including unit and end-to-end testing, Arrange-Act-Assert, and libraries like Jest and React Testing Library.

This document explains the four phases of the React function component lifecycle—mounting, updating, unmounting, and error handling—using hooks and practical examples.

This document explains state management in React function components, focusing on the useState hook, syntax, and practical examples for dynamic UI updates.

This document explains the principles and practical use of component composition in React, including abstraction, reusability, hierarchy, props children, and higher-order components.

This document explains how props and event handling work in React function components, covering data flow, default props, customization, and conditional rendering.

This document explores the concept of AI agents, their practical roles workflows, and the transformative impact they are expected to have on work and daily life.

This document explores Hugging Face, an open-source AI platform, its model hub, datasets, Spaces, and practical steps to build and customize AI apps using shared code and APIs.