JavaScript is the only language that runs natively in every web browser, making it essential for any web-based BSIT capstone, modern web application, or interactive site. This hub collects free JavaScript tutorials from basic variables and functions through modern ES6+ features, DOM manipulation, async programming, and integration with REST APIs.
What you’ll learn in the JavaScript tutorial series
Core fundamentals: variables (let/const), data types, operators, conditionals, loops
Functions: declarations, expressions, arrow functions, closures, callbacks
DOM manipulation: selecting elements, modifying content, event handling
ES6+ features: destructuring, spread/rest, template literals, modules
Async programming: Promises, async/await, fetch API, error handling
Array methods: map, filter, reduce, find, forEach (functional programming patterns)
Object-Oriented JavaScript: classes, prototypes, inheritance, getters/setters
Modern tooling: npm, webpack/Vite, ESLint, Prettier
Why every BSIT student should know JavaScript
JavaScript is unavoidable in modern web development, it’s the only language browsers natively execute. Even capstones built on PHP + MySQL back-ends need JavaScript for client-side validation, AJAX form submissions, dynamic UI updates, and modern interactive features. Beyond browsers, Node.js lets you write server-side JavaScript too, opening up the entire MEAN/MERN/MEVN stack family.
JavaScript vs TypeScript: which should I learn?
Start with JavaScript first to understand the core language. Once you’re comfortable, TypeScript is a superset that adds optional static typing, it catches more bugs at compile time and is the modern standard for large React/Vue/Angular projects in 2026. Most BSIT capstones can use either; pick TypeScript if your panel values type safety and modern best practices.
Related JavaScript resources
JavaScript Projects, 55+ downloadable JS capstones
React Projects, JS framework for modern UIs
Vue.js Projects, alternative front-end framework
Node.js Projects, server-side JavaScript
TypeScript Tutorial, add types to your JS
AJAX Projects, async API patterns
Scroll down to browse the full JavaScript tutorial catalog ↓
If you wanted to know the equivalent of JavaScript printf or String.format, keep on reading! The printf and String.format is popular string formatting tools in other programming languages such as C, PHP, and C#. However, JavaScript …
People often debate WebAssembly vs JavaScript performance, considering factors like security and browser compatibility. Which technology provides stronger security? And which one is more widely supported by web browsers? In this …
JavaScript truthy and falsy values are slightly hard to understand, especially when you’re just a beginner. Knowing what truthy values are is extremely important when it comes to writing strong …
In this detailed guide, we will thoroughly explore exponentiation in JavaScript. You will learn everything from the basics to advanced techniques, equipping you with the knowledge and skills to use …
Have you heard of the Double Question Mark operator in JavaScript? It’s a powerful tool that many people aren’t familiar with. In this article, we’ll dive into what it does …
When we talk about Tumblr JavaScript, we’re referring to the use of JavaScript alongside Tumblr’s API. If you want to know how to add JavaScript to your Tumblr Blog effectively, keep …
The parseFloat JavaScript is a handy tool that converts a string into a decimal number. It’s commonly used when you want to extract numeric values from strings, like user input …
Explore the world of JavaScript Fusker and unlock its power to scrape and explore images dynamically. This article will guide you with easy-to-understand insights, tips, and techniques to master JavaScript Fusker. Whether you …
Are you looking to manipulate and trim strings in JavaScript? Then, the trimEnd Javascript function is one of the methods that can help you. In this guide, we’ll delve into …
JavaScript list comprehension is a cool technique that lets developers or programmers make new arrays from old arrays using a short and clear way of writing. So if you’re a beginner …
In this article, we will guide you through the Sortby Javascript function and how it can be utilized to sort data effectively. But before that, let’s understand first what is …
Learning JavaScript is a valuable skill in today’s technology-driven world. Thus, one of the frequently asked questions is: How long does it take to learn JavaScript? Hereof whether you’re a …
Today, we will explore the JavaScript blooket hack and tricks so that you can enhance your coding skills and develop impressive web applications. You can enhance your JavaScript skills with the help of this …
async and await are modern JavaScript syntax for working with Promises (asynchronous operations like fetching data from an API). Old callback-based code becomes deeply nested ("callback hell"). Promises improved this. async/await makes asynchronous code read like synchronous code, much easier to follow. Essential for any modern web app that talks to a server: const response = await fetch('/api/users'); const data = await response.json();.