Full-Stack Developer (Node.js + React) — SeniorCovers Node.js and React fundamentals, JavaScript language internals, and the end-to-end architecture decisions senior full-stack interviews focus on.Price: US$ 24.89. 100 published questions in this package.Objectives

JavaScript/TypeScript

Frontend (React)

Frontend (Rendering & State)

Node.js Runtime

Backend Frameworks

REST & API Design

Authentication & Authorization

Databases

Caching & Performance

DevOps Basics

System Design

Security

Testing

SyllabusJavaScript/TypeScriptFrontend (React)Frontend (Rendering & State)Node.js RuntimeBackend FrameworksREST & API DesignAuthentication & AuthorizationDatabasesCaching & PerformanceDevOps BasicsSystem DesignSecurityTestingSample questions

What is the difference between `let`, `const`, and `var` in JavaScript?

Explain the difference between `==` and `===`.

What is a closure and why is it useful?

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