Introduction to React

Introduction to React

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1. Getting Started: ES6

In this section we will explore why React is useful and why it is worth learning it at all. We will also learn one prerequisite, ES6, which will be used throughout the course.

Why React?

Node.js and npm

ES6 Arrow Functions

ES6 Destructuring

ES6 Spread Operator

ES6 Ternary Operator

2. Getting Started: JSX

In this section, we will learn another prerequisite - JSX which will be used throughout the course. Finally, we will explore some example code to get acquainted with React.

JSX Introduction

JSX Variables & Nested Elements

JSX Embedding Expressions

JSX Specifying Attributes

Getting Started with React

3. React in Practice

In this section we will learn about the essential and practical parts of React excluding the components – which will be covered in the next section. We will look at how JSX can be used with React, and how to create and render more complex elements in the React DOM using JSX. We will also learn how to set up a React based project, and we will explore its structure for deepening our understanding.

Getting familiar with JSX

Writing more Complex Elements using JSX

Creating a React-Based Project

Structure of a React Project

4. React Components

In this section you’ll be introduced to React components. We will look at what React components are and why we need them. We will explore the two different types of React components and learn the syntax for creating them. We will use them to create a single page application that displays X.

Introduction to Components

Functional Components

Creating React Components

Importing Components

5. Controlling Data & Content

In this section we will learn more about how to combine JavaScript and JSX to create dynamic content. We will also learn how to pass data between components. In the end we will also explore event handling.

Passing Data into Components

Conditional Rendering

Loop Based Rendering

Creating a TODO Application

6. Hooks

In the end of the previous chapter, we tried making a Todo application though in our attempt to do so we soon discovered that we needed some method for re-rendering the components once the data is updated in a component as React wasn’t automatically doing that for us. In this section we will learn how to fix such issues using ‘Hooks’. We will learn and implement hooks in detail. By the end of this section, you will be able to create stateful components in React and combine them to create complex web applications.

Introduction to Hooks

Using the State Hook

The Effect Hook

Rules of Using Hooks

Creating Custom Hooks

Fixing the Todo Application

7. React Router

In this chapter we will learn how to add different pages to our React application and render different components based on URL. You will gain sufficient knowledge to be able to create multi-page applications.

Introduction to React Router

Route-Based Rendering

Creating Navigation Bars

Зміст курсу

Introduction to React

Introduction to React

1. Getting Started: ES6

Why React?Node.js and npm ES6 Variables ES6 Arrow Functions ES6 Map Method ES6 Destructuring ES6 Spread Operator ES6 Ternary Operator

2. Getting Started: JSX

JSX Introduction JSX Variables & Nested Elements JSX Embedding Expressions JSX Specifying Attributes Getting Started with React

3. React in Practice

Getting familiar with JSX Writing more Complex Elements using JSX Creating a React-Based Project Structure of a React Project

4. React Components

Introduction to Components Functional Components Creating React Components Importing Components

5. Controlling Data & Content

Passing Data into Components Conditional Rendering Loop Based Rendering Keys in Lists Event Handling Creating a TODO Application

6. Hooks

Introduction to Hooks Using the State Hook The Effect Hook Rules of Using Hooks Creating Custom Hooks Fixing the Todo Application

7. React Router

Introduction to React Router Route-Based Rendering Creating Navigation Bars Using Params

Why React?

Don't start the course if you are not acquainted with JavaScript

React is a JS library for UI development, known for its ease of use and convenient features, with several advantages over vanilla JS.

The following are the main advantages of using React:

Component-Based. The application is divided into small reusable components that make it very easy to piece together the application and debug the application in case of any errors or bugs;
Declarative. React updates automatically and displays the updated components in case there are any changes in the state or data of a component.
Improved Productivity. Since React eliminates the need for writing a lot of tedious and unnecessary code and simplifies the process substantially, it makes it faster to develop applications and hence increases productivity;
Easy to Learn: It’s easier to learn and use than other JavaScript libraries like Vue and Angular.

For writing React applications, we use ES6 and JSX, which we will explore in the upcoming chapters.

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