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JavaScript for Beginners: Build a Budget App & Online Store
New
100 students
JavaScript for Beginners: Build a Budget App & Online Store
Learn modern JavaScript from scratch: DOM, events, async/await and Fetch API, plus 3 real projects built step by step
Created byAli Murtaza
Last updated 11/2026
English
What you'll learn
- Write JavaScript from scratch: variables, data types, conditionals, loops, functions, objects and arrays
- Use array methods like map, filter, reduce, find and sort to transform real data
- Select and change web page elements with the DOM, and respond to clicks, typing and form input with events
- Save data in the browser with localStorage so your apps remember it after a page reload
- Write modern JavaScript: arrow functions, destructuring, spread and rest, and higher-order functions
- Work with async code using promises, async/await and the Fetch API, and handle errors when a request fails
- Write the JavaScript for a budget tracker with categories, dates and Chart.js charts that keeps your data between visits
- Write the JavaScript for an e-commerce store: product grid, search and filters, shopping cart, promo codes and checkout
- Validate forms in real time and show clear error messages as users type
- Organize a JavaScript project across multiple files the way real front-end apps are built
Explore related topics
Course content
14 sections • 77 lectures • 20h 33m total length
Requirements
- No programming experience needed. You’ll learn JavaScript from your very first line of code
- A computer (Mac, Windows or Linux) with internet access and a free code editor like VS Code
- Basic HTML and CSS knowledge helps
Description
Want to learn JavaScript properly, not just copy code you don’t understand? This course takes you from your very first line of JavaScript to building complete, working web apps, one clear step at a time.
You’ll write every line of JavaScript with me. For each project you get ready-made HTML and CSS templates, so every minute goes into the language itself: how it works, why it works, and how to use it in real code.
What you’ll learn
The fundamentals: variables, data types, numbers, strings, conditionals, loops, functions, objects and arrays
Array methods like map, filter, reduce, find and sort, used on real data
Scope, hoisting and arrow functions, explained simply
The DOM: selecting, changing, creating and removing page elements
Events and forms: responding to clicks, typing and form input, with real-time validation
Local storage, so your apps remember data after a page reload
Modern JavaScript syntax: destructuring, the spread operator, rest parameters and higher-order functions
Asynchronous JavaScript: promises, async/await and the Fetch API, including error handling
The projects you’ll build
A to-do app that puts your DOM skills to work
A budget app that tracks income and expenses, with categories, date filters and saved data
An online store with a product grid, search and filters, a shopping cart, promo codes and a checkout
How the course works
Every lesson builds on the one before it. Concepts come first with short, focused examples, then you use them in a real project. By the end you’ll know how to plan a JavaScript project, organize its code across files and build features from scratch on your own.
Who this course is for
This course is for complete beginners, for people who know some HTML and CSS and want to make their pages interactive, and for self-taught developers who know a little JavaScript but want to build complete projects with confidence. No programming experience is needed.
Enroll now and start writing real JavaScript today.
Who this course is for:
- Complete beginners who want to learn JavaScript, the language of the web, step by step
- People who know some HTML and CSS and want to make their pages interactive
- Self-taught developers who know some JavaScript but want to finally build complete projects on their own
- Anyone aiming for front-end or full-stack web development who needs a solid JavaScript foundation first