Conteúdo do Curso
React Mastery
React Mastery
Introduction to React Section Sum-Up
What is React:
- React is a widely used JavaScript library for building user interfaces;
- It empowers developers to create reusable UI components and efficiently manage state and data flow.
JSX (JavaScript XML):
- JSX is a syntax extension for JavaScript, enabling the integration of HTML-like code within JavaScript;
- It offers a concise and expressive way to define the structure and appearance of UI components.
Rendering Elements in React:
- React employs a Virtual DOM for optimal performance;
- Elements serve as the fundamental building blocks of React applications, representing UI components.
Components in React:
- Components are self-contained, reusable pieces of UI;
- Functional components are defined as JavaScript functions;
- Components encapsulate their logic and rendering behavior.
Conditional Rendering:
- React facilitates conditional rendering to display different UI components or content based on specified conditions;
- Conditional rendering is achieved using JavaScript conditional statements such as
&&
operator and the ternary operator? ... : ...
.
Data Collection Rendering:
- We use the
map()
method for iterating over arrays and dynamically rendering UI components for each item; - It's essential to assign a unique
key
prop to each element in the collection for efficient rendering.
1. What is React primarily used for?
2. What does JSX stand for in React?
3. How does React achieve high performance in rendering?
4. What are React components?
5. When rendering dynamic UI components based on an array of data in React, what is the purpose of the key
prop?
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