React.js for Beginners: Build a Complete Expense Tracker App

discover how to create a new React project with Vite or Create React App, install dependencies with npm, and run the dev server to build a clean expense tracker app.

Discover how React components function as reusable UI blocks for an expense tracker app, using header, expense form, expense list, and total components built from JavaScript functions returning HTML-like code.

Create your first React component by building a header in a separate file, exporting and importing it, and passing data with props to customize the header.

Pass data to components using props to customize elements like the header in a React app. Destructure props to shorten code and ensure header text changes with the passed props.

Learn how to use state with useState to track values like current counts, update the UI without reloading the page, and manage expenses with increment, decrement, and totals.

Create a header component UI for a React.js expense tracker app, refining structure, return syntax, and text alignment with padding, while preparing to add expense form and expense list components.

Explore how to structure an expense form in a React.js app by composing components, grouping inputs, and wiring a UI-only form with number and date fields and an add button.

Build an expense list structure by creating list components, rendering items with the map function, and integrating the expense list into the main app with imports and UI styling.

Open the index css to inspect the app's styling, including container margins, a 20% padding, form placeholder, and how to style the expense list and items with a clean underline.

learn to create an add expense form in a React.js beginner course, blending UI and logic to build a complete expense tracker app.

Demonstrate handling input changes with two-way binding to create a controlled form, submit the form, and implement undo functionality for input updates using value and change handlers.

Learn to use useState to manage form data and the amount in a React expense tracker, creating and linking new state to track expenses.

Learn to add new expenses to the list by lifting state up, passing an add expense handler to the form, and rendering the dynamic expenses list with keys.

Render an expenses list by mapping over state array, display each item with id, last name, amount, and a formatted date, and style each item while storing the list locally.

Learn how to use the JavaScript reduce function to calculate the total amount spent from an expenses array, and begin defining components for the expense tracker in React.

Learn to display the total expenses dynamically in a React.js app by passing the total to app.js, rendering the list with conditional UI, and summing expenses as they update.

Create a conditional UI in a React.js expense tracker that shows an add form and auto-updates the total, and gracefully handles the empty list state.

Elevate your expense tracker with professional, responsive css styling that defines a clean body layout, a white form, and a styled expense list with shadows and clear total expenses.

Organize components by removing unused imports and files, install prettier for formatting, and add a footer to give the app a polished, professional, readable look.