Kursinnehåll

React Mastery

1. Fundamentals of React and Component-Based UI

What Is React and Why Use It?Comparing SPAs and MPAs in Web Development How React Works with the Virtual DOM Introducing JSX for Writing HTML in JavaScript Building Complex UI with JSX Rendering Elements in React Challenge: Render an Element in React Understanding React Components Passing Data with Props in React Challenge: Create Functional Components Conditional Rendering in React Challenge: Implement Conditional Rendering – Chat Notification Challenge: Implement Conditional Rendering – Bank Alert Rendering Collections of Data in React Challenge: Display Data Collections in React React Fundamentals Wrap-Up

2. Styling Techniques in React Applications

Introduction to Styling in React Using Inline Styles in React Applying Inline Styles in Practice Challenge: Use Inline Styles in a React Component Styling React Components with External CSS Applying External CSS in Practice Challenge: Apply External CSS to a React App Using CSS Modules for Scoped Styling in React Organizing File and Folder Structures for Styles Challenge: Use CSS Modules in React Styling Techniques in React Wrap-Up

3. React Hooks and Context for State Management

Introduction to React Hooks and Context Managing State with the useState Hook Challenge: Toggle Visibility with useState Working with References Using the useRef Hook Challenge: Build a Controlled Form Component Handling Side Effects with the useEffect Hook Challenge: Fetch and Display Data with useEffect Optimizing Performance with the useMemo Hook Challenge: Implement a Car List Filter with useMemo Sharing State Across Components with Context Using Context in a Real-World Scenario Challenge: Build a World of Astronomy App with Context React Hooks and Context Wrap-Up

4. Structuring Real-World React Projects

Setting Up Your React Development Environment Choosing a Code Editor for React Development Organizing the Project Folder Structure Working with the Terminal in React Development Starting and Running a React Project with Vite React Project Setup Wrap-Up

Challenge: Implement Conditional Rendering – Bank Alert

Task: Creating a Bank Alert

Let's work with a bank account. We aim to develop a logic that informs the user whether they have sufficient funds on their card to cover a given price. Depending on the outcome, we will display different messages to the user.

The task is:

Create two components - App, parent, and Message, child.
The parent component (App) transfers the props moneyAvailable, price, and name.
1. moneyAvailable - represents the amount of money the user has;
2. price - denotes the amount of money the user needs to pay;
3. name - refers to the user's name.
If the user has enough money to pay, we show the message: Success! The remaining amount of money for <user_name> is: <calculated_amount_of_money_left>. Thank you!.
If the user has not enough money to pay, we show the message: Failure! The bank account balance for <user_name> is: <moneyAvailable>. Unfortunately, you need to pay: <price>.

In React, we use the ternary operator condition ? ... : ... to implement the logic of an if...else statement.
To construct the string correctly,
- Replace the placeholder user_name with the actual user name: name prop;
- Replace the placeholder calculated_amount_of_money_left with the calculated amount of money left - moneyAvailable - price;
- Replace the placeholder moneyAvailable with the actual available money - moneyAvailable prop;
- Replace the placeholder price with the actual price - price prop.
Use curly braces {...} to assign a value that is not a string type.

Var allt tydligt?

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Avsnitt 1. Kapitel 13

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