Are there pointers in JavaScript? A Beginner’s Guide
Are there pointers in JavaScript? Well, if you want to know the answer, keep on reading! This article will answer this question below. Discover the truth about JavaScript pointers with …
JavaScript Tutorial 2026: Free ES6+ Beginner to Advanced
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 ↓
Mastering Ways To Convert Set To Array JavaScript
Why convert set to array in JavaScript? What are the methods we need to convert sets to an array? In this article, we will explore the process of converting a …
Factorialize JavaScript: How Does it Work In Two Approach
What does factorialize in JavaScript mean? How we can factorial a number? In this article, we will know the different approaches how to factorialize a number in Javascript. Before we …
How to check if an element is focused in JavaScript
One of the typical task that occurs when working with JavaScript is checking if an element on a web page has the focus. The focus refers to the element that …
A smarter way to learn JavaScript: 15 Quick Learning Methods
Today, we will explore a smarter way to learn JavaScript in a simple yet effective way. JavaScript is a computer programming language that is important for creating websites. It is powerful and …
Swift vs JavaScript Performance Differences: Which one is better?
In this article, we’ll talk about the performance differences between Swift vs JavaScript, which are two popular programming languages with different purposes and characteristics. We’ll explore their features, uses, and how …
Three (3) Ways On How To Run A JavaScript File
What is a JavaScript file? How to run a JavaScript file? In this article, we will explore the different methods on how to run a JavaScript file, providing you with …
How to call JavaScript function in html without button
One of the frequent works is calling JavaScript functions in HTML. While many developers are familiar with calling functions using buttons, there are cases where you may need to trigger …
How to Update Value in JavaScript
One of the common work that developers usually encounter is updating values in JavaScript. The simplest methods to update all values within an object are the following: You can use …
Exploring How To Make JavaScript API Call
This article aims to provide a complete guide on how to make JavaScript API calls, empowering developers to harness the full potential of web APIs and enhance their applications’ functionality. …
How to remove numbers from string in JavaScript
In JavaScript programming, there are common situations where you need to employ strings and remove specific characters or elements from them. One of the simple tasks is to remove numbers …
How to replace or remove all spaces from a string in JavaScript?
If you want to replace or remove spaces from a string in JavaScript, keep reading! There are times when you need to get rid of or change all the spaces in …
JavaScript Check If String Is Number: Understanding the Basics
Checking if a string is a number in JavaScript is an essential task in many web development projects. Basically, working with JavaScript, it’s crucial to differentiate between strings that represent …
Frequently Asked Questions
Do I need to learn JavaScript before React or Vue?
Yes, solid JavaScript fundamentals are essential before tackling frameworks. Spend at least 4-8 weeks on core JS (variables, functions, arrays, objects, DOM, async) before touching React, Vue, or Angular. Jumping straight to a framework without knowing the underlying language leads to copy-paste developers who can't debug or extend their code, panels notice this in defense. ES6+ syntax (arrow functions, destructuring, spread/rest) is mandatory before frameworks.
What's the difference between var, let, and const?
var is the old (pre-2015) way to declare variables, function-scoped, hoisted, can be redeclared. Avoid in modern code. let is block-scoped, can be reassigned, can't be redeclared in the same scope. Use for variables whose value will change. const is block-scoped, can't be reassigned. Use by default; switch to let only when reassignment is needed. Rule of thumb: const by default, let when needed, never var.
What's async/await and why does it matter?
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();.How do I run JavaScript outside a browser?
Install Node.js (free, cross-platform from nodejs.org), it's a JavaScript runtime that lets you execute .js files from your terminal. Use cases beyond browsers: server-side web apps (Express, Fastify, NestJS), command-line tools, build tooling (webpack, Vite), desktop apps (Electron), testing scripts (Jest, Playwright). Browse our Node.js Projects for server-side examples.
Should I learn TypeScript instead of JavaScript?
Learn JavaScript first, then add TypeScript when you're comfortable. TypeScript is JavaScript with optional static typing, it catches more bugs at compile time but adds complexity. For 2026 capstones using React/Vue/Angular, TypeScript is increasingly the standard. For pure jQuery or vanilla JS capstones, TypeScript is overkill. See our TypeScript Tutorial when you're ready.
What can I build with JavaScript for my capstone?
Browser-only capstones: games (Tic-Tac-Toe, Hangman, Memory, Flappy Bird), calculators and converters, interactive dashboards with Chart.js. Front-end + back-end (full-stack): MERN stack capstones (React + Express + MongoDB), real-time chat apps with Socket.io, e-commerce front-ends consuming a PHP back-end. Browse our JavaScript Projects for examples.