This document provides an overview of ECMAScript 6 (ES6), covering key
features such as `let`, `const`, arrow functions, promises, and classes, and their impact on modern JavaScript development.
A comprehensive overview of authentication methods in web development including traditional session-based authentication, JWT, OAuth 2.0 passwordless authentication, and more. The article explains how different authentication mechanisms work, their use cases, and factors to consider when selecting authentication methods for various application types.