Week 3: Course Overview Next.js Last Updated : 16 Oct, 2025 Comments Improve Suggest changes 1 Likes Like Report Welcome to Week 3 of the Next.js journey! This week focuses on state management, advanced form handling, SEO, security, error handling, testing, and project-based application. By the end of this week, you’ll be comfortable managing complex application states, handling user input securely, improving SEO, and testing your Next.js apps effectively.Day 15 - State ManagementLearn state management in React within Next.js apps.Understand Hooks (useState, useReducer, useEffect).Use Context API for global state.Explore Redux for larger applications.Optional libraries like Zustand for simplified state management.Day 16 - Forms and Validation in Next.jsCreate interactive Next.js forms.Implement form validation for user input.Difference between controlled vs uncontrolled forms.Handle multiple form fields efficiently.Day 17 - Advanced Forms & MutationsBuild Login Forms using React Hook Form.Handle server-side mutations in forms.Implement cache revalidation for up-to-date data.Manage cookies in Next.js.Redirect users after successful form submission.Day 18 - SEO, Metadata & Security in Next.jsOptimize your application for search engines (SEO).Add and manage metadata dynamically.Implement Content Security Policy (CSP) for better security.Day 19 - Error HandlingCreate custom error pages for 404 and 500 errors.Use try/catch in API routes to handle server errors.Implement Error Boundaries in React to catch UI errors.Handle client-side errors gracefully.Day 20 - Testing in Next.jsLearn unit testing for React and Next.js components.Use Jest to write and run tests.Test API routes and server-side logic.Day 21 - Mini Document Management SystemCreate a Weather Monitoring Dashboard Create Quiz Comment A aman98 Follow 1 Improve A aman98 Follow 1 Improve Article Tags : JavaScript javaScript Explore JavaScript BasicsIntroduction to JavaScript4 min readVariables and Datatypes in JavaScript6 min readJavaScript Operators5 min readControl Statements in JavaScript4 min readArray & StringJavaScript Arrays7 min readJavaScript Array Methods7 min readJavaScript Strings5 min readJavaScript String Methods9 min readFunction & ObjectFunctions in JavaScript5 min readJavaScript Function Expression3 min readFunction Overloading in JavaScript4 min readObjects in JavaScript4 min readJavaScript Object Constructors4 min readOOPObject Oriented Programming in JavaScript3 min readClasses and Objects in JavaScript4 min readWhat Are Access Modifiers In JavaScript ?5 min readJavaScript Constructor Method7 min readAsynchronous JavaScriptAsynchronous JavaScript2 min readJavaScript Callbacks4 min readJavaScript Promise4 min readEvent Loop in JavaScript4 min readAsync and Await in JavaScript2 min readException HandlingJavascript Error and Exceptional Handling6 min readJavaScript Errors Throw and Try to Catch2 min readHow to create custom errors in JavaScript ?2 min readJavaScript TypeError - Invalid Array.prototype.sort argument1 min readDOMHTML DOM (Document Object Model)8 min readHow to select DOM Elements in JavaScript ?3 min readJavaScript Custom Events4 min readJavaScript addEventListener() with Examples9 min readAdvanced TopicsClosure in JavaScript4 min readJavaScript Hoisting6 min readScope of Variables in JavaScript3 min readJavaScript Higher Order Functions7 min readDebugging in JavaScript4 min read Like