Node.js Basics is an extensive learning repository covering Node.js programming, server development, APIs, and common interview topics. Its material addresses event-driven programming, callbacks, callback hell, asynchronous behavior, commands, APIs, programming exercises, and frequently asked questions. Separate reference files collect multiple-choice questions, data-structure material, design-pattern notes, and practical Node.js examples. The repository also contains sample projects for MySQL integration and several JWT authentication approaches. ...