Here’s a guide to practical JavaScript project examples, combining ES6+, Fetch API, Async/Await, LocalStorage, and DOM manipulation. These examples are beginner-friendly but cover real-world use cases. 1️⃣ Todo List App Features: Add, delete, and...
JavaScript ES7+ Features (ES2016+) After ES6, JavaScript introduced several new features every year. ES7 and above focus on making code simpler, cleaner, and more powerful. 1️⃣ Exponentiation Operator (**) – ES7 Replaces Math.pow() for...
JavaScript ES6 (ECMAScript 2015) ES6 introduced modern features to JavaScript, making code cleaner, more readable, and easier to maintain. 1️⃣ let and const let – Block-scoped variable const – Block-scoped constant (cannot reassign)
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let name = "Vipul"; name = "John"; // Works const age = 30; age = 31; // Error |
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JavaScript Cookies A cookie is a small piece of data stored in the browser.Cookies are often used to: Save user preferences Track sessions Store login information Unlike LocalStorage/SessionStorage, cookies are sent to the server...
JavaScript Web Storage Web Storage allows you to store data locally in the browser.It is more secure and easier to use than cookies. Two main types: LocalStorage – Permanent storage (data persists after closing...
JavaScript Fetch API Advanced The Fetch API is a modern way to make HTTP requests in JavaScript.It works with Promises and is commonly used to interact with APIs. 1️⃣ Basic Fetch
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fetch("https://jsonplaceholder.typicode.com/posts") .then(response => response.json()) .then(data => console.log(data)) .catch(error => console.error("Error:", error)); .then() handles the resolved Promise .catch() handles errors |
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JavaScript Async / Await async and await are modern JavaScript features that make working with Promises easier and code more readable, avoiding the “callback hell.” 1️⃣ Async Functions An async function always returns a...
✅ JavaScript Promises A Promise is an object representing the eventual completion or failure of an asynchronous operation.It allows handling async tasks more cleanly than callbacks. 📌 Promise States State Description Pending Initial state,...
JavaScript AJAX (Asynchronous JavaScript and XML) AJAX allows web pages to update content without reloading the entire page.It communicates with a server in the background and fetches data asynchronously. 🎯 Why Use AJAX? Feature...
JavaScript JSON (JavaScript Object Notation) JSON (JavaScript Object Notation) is a lightweight data format used for storing and transferring data between a server and a web application. It is easy for humans to read...
