From the course: Master React 19 and Next.js 16 with Hands-On Projects and Real-World Applications

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Component tree

Component tree

From the course: Master React 19 and Next.js 16 with Hands-On Projects and Real-World Applications

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Component tree

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In this session, we're going to take a look at the component tree of our to-do list project. Understanding the component hierarchy is super important, because in React, everything is a component, and how you structure them makes your app easier to scale and maintain. Let's start at the top. At the very top, we have our App component. This is the root component, the entry point of our UI. It holds our main state and acts as the central hub for passing props and managing global functionality. Let's break the app component into smaller, focused components to follow the separation of concerns principle. First we have a heading. This is a simple heading element which we could include as is inside the app component or create a separate component for it. Then we have a TaskForm component. This is the input field where users type a new task and set its priority. Then we have a TaskControls component. This component provides UI for filtering tasks, e.g. showing only incomplete, and sorting…

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