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 ↓
Do you want to know the difference between JavaScript setTimeout vs setInterval method? Read on! This comprehensive guide explains the setTimeout and setInterval methods in JavaScript. It covers their syntax, parameters, return values, …
How to check if a variable or number is an integer in JavaScript? In this article, we will provide different solutions on how to check if a variable or number is …
One common requirement in JavaScript is adding months to a date. In this guide, we’ll delve into the intricacies of how to add months to a date using JavaScript, ensuring …
JavaScript Optional Chaining Array, typically referred to as “?.” is a game-changer for developers. It enables you to access nested objects and arrays without the need for considerable error-checking. Let’s …
Date manipulation is a fundamental aspect of programming, and in this article, we’ll delve into the world of JavaScript date objects. Specifically, we’ll explore how to add hours to a …
Are you looking for solutions on how to turnoff JavaScript Tor? In this article, we will delve into the intricacies of disabling JavaScript on Tor, ensuring your online activities remain …
Welcome to the exciting part of interactive front-end web development powered by JavaScript and jQuery. In this article, you will have to learn web development, providing you with the knowledge …
One of the fundamental concepts in JavaScript is NodeTypes. In this article, w will discuss in details the JavaScript NodeTypes, their significance and practical applications. What is JavaScript nodeType? JavaScript …
Let’s unfold the concept of array equality in JavaScript, a key aspect of the language that involves comparing two arrays for equality. This article provides solutions on how to check …
In web development, efficiency and user experience are preeminent. One of the method to achieve both is by using the power of JavaScript SendKeys. This functional feature enables you to …
Do you want to add new values, but don’t know how to append them to an object in JavaScript? Read on! In JavaScript, when you want to change how something …
Are you a developer encountering the preventive issue of “JavaScript Foreach is Not a Function“? Don’t worry; you’re not alone. This common block can prevent your coding progress. In this …
How to create to create an age calculator in JavaScript that calculates Age from Date of Birth? Read on, because we will hand you a step-by-step tutorial on developing a …
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();.