└── README.md /README.md: -------------------------------------------------------------------------------- 1 | # Machine Coding🧠 Round Questions-Frontend🎯 2 | 3 | ### HTML and CSS 4 | 5 | 1. **Build a Basic HTML Page**: Create a basic HTML page that includes a header, navigation menu, main content section, and a footer. 6 | 7 | 2. **Responsive Navigation Menu**: Implement a responsive navigation menu that collapses into a hamburger menu on smaller screens using HTML, CSS, and JavaScript/jQuery. 8 | 9 | 3. **JavaScript Calculator**: Build a simple calculator using HTML, CSS, and JavaScript that can perform basic arithmetic operations (addition, subtraction, multiplication, division). 10 | 11 | 4. **Image Carousel**: Create an image carousel/slider using HTML, CSS, and JavaScript/jQuery that allows users to navigate through a set of images with next and previous buttons. 12 | 13 | 5. **To-Do List Application**: Develop a to-do list web application using HTML, CSS, and JavaScript. Users should be able to add, edit, and delete tasks. 14 | 15 | 6. **Responsive Design**: Take an existing web page and make it responsive for various screen sizes (e.g., desktop, tablet, mobile) using media queries and CSS. 16 | 17 | 7. **Fetch API**: Use the Fetch API to retrieve data from a JSON endpoint and display it on a web page using JavaScript. 18 | 19 | 8. **Single Page Application (SPA)**: Build a simple single-page application (SPA) using a frontend framework of your choice (e.g., React, Angular, Vue.js). Create multiple views and navigate between them. 20 | 21 | 9. **Form Validation**: Implement client-side form validation for a registration form using HTML5 and JavaScript. Validate fields like email, password strength, and required fields. 22 | 23 | 10. **Implement a Drag and Drop Feature**: Create a web page with a drag-and-drop interface using HTML, CSS, and JavaScript. Allow users to drag elements and drop them into designated areas. 24 | 25 | 11. **Infinite Scroll**: Implement an infinite scroll feature on a web page. Load additional content as the user scrolls down the page using JavaScript and AJAX. 26 | 27 | 12. **Interactive Map**: Build an interactive map using a mapping library (e.g., Leaflet, Google Maps API) and allow users to search for locations, add markers, and display additional information when clicking on markers. 28 | 29 | 13. **Web Accessibility**: Ensure that a web page complies with web accessibility standards (WCAG). Make necessary HTML and CSS modifications to improve accessibility for users with disabilities. 30 | 31 | 14. **CSS Animation**: Create a CSS animation, such as a spinning loader or a fading effect, to enhance user experience on a webpage. 32 | 33 | 15. **Responsive Email Template**: Design and code a responsive email template that looks good on both desktop and mobile email clients. 34 | 35 | 16. **Dynamic Content Filtering**: Create a web page that allows users to filter content dynamically based on categories or tags using JavaScript. 36 | 37 | 17. **Social Media Sharing Buttons**: Implement social media sharing buttons (e.g., Facebook, Twitter) on a webpage. When a user clicks a button, a share dialog should appear. 38 | 39 | 18. **Image Lazy Loading**: Implement image lazy loading to improve page performance. Images should only load when they are in the viewport. 40 | 41 | 19. **Form Autocomplete**: Add autocomplete functionality to a search input field using JavaScript. Provide suggestions as the user types. 42 | 43 | 20. **Implement a Lightbox**: Create a lightbox/modal window that displays images or content when a user clicks on a thumbnail or a button. 44 | 45 | ### Intermediate Frontend Development 46 | 47 | 21. **Real-time Chat Application**: Build a real-time chat application using a frontend framework (e.g., React, Vue.js) and a backend technology like WebSocket or Firebase. 48 | 49 | 22. **Responsive Tables**: Make HTML tables responsive. Ensure that tables adapt to different screen sizes without horizontal scrolling. 50 | 51 | 23. **Data Visualization**: Create a data visualization chart (e.g., bar chart, pie chart) using a JavaScript library like D3.js or Chart.js. 52 | 53 | 24. **Sticky Navigation**: Implement a sticky navigation bar that sticks to the top of the page when scrolling down and returns to its original position when scrolling up. 54 | 55 | 25. **Web Performance Optimization**: Optimize the performance of a slow-loading webpage. Identify bottlenecks and apply optimizations to reduce load times. 56 | 57 | 26. **Progressive Web App (PWA)**: Convert a web application into a Progressive Web App. Add features like offline access and push notifications. 58 | 59 | 27. **Unit Testing**: Write unit tests for a JavaScript function or component using a testing framework like Jest. 60 | 61 | 28. **Cross-browser Compatibility**: Ensure that a webpage works correctly and looks consistent across different web browsers (e.g., Chrome, Firefox, Edge). 62 | 63 | 29. **Web Security**: Identify and fix security vulnerabilities in a web application, such as Cross-Site Scripting (XSS) or Cross-Site Request Forgery (CSRF). 64 | 65 | 30. **Responsive Email Signature**: Design and code a responsive email signature that can be used in email clients. 66 | 67 | 31. **Infinite Carousel**: Create an infinite carousel/slider that automatically loops through a set of images or content, providing navigation controls for the user. 68 | 69 | 32. **Image Gallery**: Build an image gallery where users can view a collection of images, click to enlarge, and navigate through them using previous and next buttons. 70 | 71 | 33. **Tooltip Component**: Design and implement a reusable tooltip component in HTML, CSS, and JavaScript/jQuery that appears when hovering over specific elements. 72 | 73 | 34. **Data Fetch and Display**: Fetch data from a public API (e.g., GitHub API, OpenWeatherMap API) and display it on a webpage using JavaScript. Format and style the data appropriately. 74 | 75 | 35. **Animated Dropdown Menu**: Create a dropdown menu that expands and collapses with smooth animations when the user hovers over a trigger element. 76 | 77 | 36. **Interactive Forms**: Enhance a web form with interactive features like auto-suggestions, input validation, and conditional form fields using JavaScript. 78 | 79 | 37. **Page Transitions**: Implement smooth page transitions between different sections or pages of a website using CSS transitions and JavaScript. 80 | 81 | 38. **Keyboard Shortcuts**: Add keyboard shortcuts to a web application to improve user accessibility and navigation. 82 | 83 | 39. **Dark Mode Toggle**: Create a dark mode toggle button that switches the website's color scheme between light and dark mode. 84 | 85 | 40. **WebGL Experiment**: Develop an interactive WebGL project, such as a 3D visualization or animation, and embed it into a webpage. 86 | 87 | 41. **Custom Video Player**: Build a custom HTML5 video player with custom controls, such as play, pause, volume, and progress bar. 88 | 89 | 42. **Page Printing Styles**: Define CSS styles for printing a web page so that it looks well-formatted when printed on paper. 90 | 91 | 43. **Implement a Photo Gallery**: Create a photo gallery with albums, thumbnails, and the ability to view images in a larger size. 92 | 93 | 44. **Web Audio Player**: Build a web-based audio player with features like play, pause, volume control, and playlist support. 94 | 95 | 45. **SVG Animation**: Animate SVG graphics using CSS or JavaScript to create eye-catching visual effects. 96 | 97 | 46. **Custom CSS Framework**: Develop a custom CSS framework with pre-designed components and styles for rapid front-end development. 98 | 99 | 47. **Web Animation Framework**: Create a JavaScript animation framework that simplifies the process of animating elements on a webpage. 100 | 101 | 48. **Augmented Reality Web App**: Develop an augmented reality (AR) web application that overlays digital content on the user's real-world view using WebXR or similar technology. 102 | 103 | 49. **Progressive Image Loading Placeholder**: Implement a progressive image loading technique that displays a blurred or low-quality image as a placeholder while the high-quality image loads. 104 | 105 | 50. **Automated Web Testing**: Write automated tests for a web application using testing frameworks like Selenium or Cypress. 106 | 107 | ### Expert Frontend Development (Part 1) 108 | 109 | 51. **Custom Web Animation Library**: Create a small JavaScript library for animating elements on a webpage, including support for various easing functions. 110 | 111 | 52. **Custom UI Components**: Create custom UI components, such as a modal dialog, date picker, or autocomplete, from scratch using HTML, CSS, and JavaScript. 112 | 113 | 53. **Mobile-First Development**: Develop a webpage following the mobile-first approach, ensuring it looks and functions well on mobile devices and scales up to larger screens. 114 | 115 | 54. **Third-Party API Integration**: Integrate with a third-party API (e.g., Google Maps, Twitter, YouTube) and display data or content from that API on your webpage. 116 | 117 | 55. **Offline Support**: Implement offline support for a web application, allowing users to access content even when they have no internet connection. 118 | 119 | 56. **Browser History API**: Use the Browser History API to implement client-side routing in a single-page application (SPA). 120 | 121 | 57. **Infinite Scroll with Pagination**: Combine infinite scrolling with pagination to load and display content efficiently while allowing users to navigate through pages of data. 122 | 123 | 58. **Web Audio Player**: Build a web-based audio player with features like play, pause, volume control, and playlist support. 124 | 125 | 59. **WebGL Experiment**: Develop an interactive WebGL project, such as a 3D visualization or animation, and embed it into a webpage. 126 | 127 | 60. **Lazy-Loaded Modules**: Implement lazy-loading for modules in a frontend framework (e.g., React, Angular, Vue.js) to reduce the initial bundle size. 128 | 129 | 61. **SVG Icon Library**: Create a reusable SVG icon library with a search and usage feature for easy integration into web projects. 130 | 131 | 62. **WebGL 3D Scene**: Develop a 3D scene using WebGL, including 3D models, textures, and interactive elements. 132 | 133 | 63. **Lazy-Loaded Images**: Implement lazy-loaded images that load only when they come into the user's viewport, improving page loading performance. 134 | 135 | 64. **Web Performance Monitoring**: Implement web performance monitoring and analytics to track and analyze website performance over time. 136 | 137 | 65. **Web Security Audit**: Perform a security audit on a web application and identify vulnerabilities like SQL injection, XSS, and CSRF. Suggest and implement fixes. 138 | 139 | 66. **Server-Side Rendering (SSR) with React**: Set up server-side rendering (SSR) for a React application. 140 | 141 | 67. **WebGL Shader Effects**: Build a WebGL-based shader effect, such as a water ripple effect or a dynamic particle system. 142 | 143 | 68. **Lazy-Loaded Images**: Implement lazy-loaded images that load only when they come into the user's viewport, improving page loading performance. 144 | 145 | 69. **Web Performance Monitoring**: Implement web performance monitoring and analytics to track and analyze website performance over time. 146 | 147 | 70. **Web Security Audit**: Perform a security audit on a web application and identify vulnerabilities like SQL injection, XSS, and CSRF. Suggest and implement fixes. 148 | 149 | 71. **Server-Side Rendering (SSR)**: Implement server-side rendering for a frontend framework (e.g., React, Angular) to improve initial page load performance. 150 | 151 | 72. **WebGL Shader Effects**: Build a WebGL-based shader effect, such as a water ripple effect or a dynamic particle system. 152 | 153 | 73. **Virtual DOM Implementation**: Implement a simplified virtual DOM (similar to React's virtual DOM) in JavaScript. 154 | 155 | 74. **Progressive Image Loading**: Develop an image loading technique that progressively loads images, starting with low-quality placeholders and improving to high-quality images. 156 | 157 | 75. **Touch and Gesture Events**: Implement touch and gesture events in a web application to provide touch-based interactions on mobile devices. 158 | 159 | 76. **Browser Storage Management**: Build a utility for managing browser storage (localStorage, sessionStorage) and provide methods for setting, getting, and removing data. 160 | 161 | 77. **Web Worker**: Use a web worker to offload computationally intensive tasks from the main thread, improving performance. 162 | 163 | 78. **Custom UI Components**: Create custom UI components, such as a modal dialog, date picker, or autocomplete, from scratch using HTML, CSS, and JavaScript/jQuery. 164 | 165 | 79. **Mobile-First Development**: Develop a webpage following the mobile-first approach, ensuring it looks and functions well on mobile devices and scales up to larger screens. 166 | 167 | 80. **Third-Party API Integration**: Integrate with a third-party API (e.g., Google Maps, Twitter, YouTube) and display data or content from that API on your webpage. 168 | 169 | 81. **Offline Support**: Implement offline support for a web application, allowing users to access content even when they have no internet connection. 170 | 171 | 82. **Browser Storage Encryption**: Implement encryption for data stored in browser storage (e.g., localStorage) to enhance security. 172 | 173 | 83. **WebGL Particle Animation**: Create a particle animation using WebGL, simulating effects like fire, rain, or fireworks. 174 | 175 | 84. **WebGL Data Visualization**: Develop a data visualization using WebGL to represent complex datasets in an interactive 3D format. 176 | 177 | 85. **Custom Drag and Drop**: Create a custom drag-and-drop functionality for elements on a webpage without relying on external libraries. 178 | 179 | 86. **Server-Side Rendering (SSR)**: Implement server-side rendering for a frontend framework (e.g., React, Angular) to improve initial page load performance. 180 | 181 | 87. **WebGL Shader Effects**: Build a WebGL-based shader effect, such as a water ripple effect or a dynamic particle system. 182 | 183 | 88. **Virtual DOM Implementation**: Implement a simplified virtual DOM (similar to React's virtual DOM) in JavaScript. 184 | 185 | 89. **Progressive Image Loading**: Develop an image loading technique that progressively loads images, starting with low-quality placeholders and improving to high-quality images. 186 | 187 | 90. **Touch and Gesture Events**: Implement touch and gesture events in a web application to provide touch-based interactions on mobile devices. 188 | 189 | 91. **Browser Storage Management**: Build a utility for managing browser storage (localStorage, sessionStorage) and provide methods for setting, getting, and removing data. 190 | 191 | 92. **Web Worker**: Use a web worker to offload computationally intensive tasks from the main thread, improving performance. 192 | 193 | 93. **Browser Storage Encryption**: Implement encryption for data stored in browser storage (e.g., localStorage) to enhance security. 194 | 195 | 94. **WebGL Particle Animation**: Create a particle animation using WebGL, simulating effects like fire, rain, or fireworks. 196 | 197 | 95. **WebGL Data Visualization**: Develop a data visualization using WebGL to represent complex datasets in an interactive 3D format. 198 | 199 | 96. **Custom Drag and Drop**: Create a custom drag-and-drop functionality for elements on a webpage without relying on external libraries. 200 | 201 | ## React 202 | 203 | 97. **React Component**: Create a simple React component (e.g., a button or a card) and render it on a webpage. 204 | 205 | 98. **State Management**: Build a React component that manages and displays state, such as a counter that increments when a button is clicked. 206 | 207 | 99. **Props and PropTypes**: Create a React component that accepts props and uses PropTypes to define and validate the expected props. 208 | 209 | 100. **Conditional Rendering**: Implement conditional rendering in a React component based on a condition like user authentication. 210 | 211 | 101. **Handling Events**: Add event handlers to React components (e.g., onClick, onChange) to make them interactive. 212 | 213 | 102. **Component Lifecycle**: Utilize component lifecycle methods (e.g., componentDidMount, componentDidUpdate) in a React component. 214 | 215 | 103. **Forms in React**: Create a form in a React component and manage its state as users input data. 216 | 217 | 104. **React Router**: Set up routing in a React application using React Router, with multiple routes and navigation. 218 | 219 | 105. **API Data Fetching**: Fetch data from an API in a React component and display it. 220 | 221 | 106. **Context API**: Use React's Context API to manage and share state or data across multiple components. 222 | 223 | 107. **Redux Setup**: Set up a Redux store, actions, and reducers in a React application. 224 | 225 | 108. **Redux State Management**: Implement state management with Redux, connecting React components to the Redux store. 226 | 227 | 109. **Redux Middleware**: Use Redux middleware (e.g., Thunk) to handle asynchronous actions in a Redux-powered React application. 228 | 229 | 110. **Authentication Flow**: Implement user authentication and authorization in a React application, including login and protected routes. 230 | 231 | 111. **React Hooks**: Rewrite class-based React components into functional components using hooks like useState and useEffect. 232 | 233 | 112. **Redux Saga**: Integrate Redux Saga for handling side effects (e.g., API calls) in a Redux-based React application. 234 | 235 | 113. **React Higher-Order Components (HOCs)**: Create a higher-order component (HOC) to add functionality to existing React components. 236 | 237 | 114. **Error Handling**: Implement error handling and display error messages in a React application. 238 | 239 | 115. **Optimizing Performance**: Optimize the performance of a React application by reducing unnecessary renders and using memoization. 240 | 241 | 116. **Unit Testing with React Testing Library**: Write unit tests for React components using React Testing Library and Jest. 242 | 243 | 117. **Server-Side Rendering (SSR) with React**: Set up server-side rendering (SSR) for a React application. 244 | 245 | 118. **Progressive Web App (PWA) with React**: Convert a React application into a Progressive Web App with offline support. 246 | 247 | 119. **Internationalization (i18n)**: Implement internationalization and localization in a React application. 248 | 249 | 120. **React Animation**: Add animations and transitions to React components using libraries like React Spring or Framer Motion. 250 | 251 | 121. **Data Pagination**: Implement data pagination in a React application, fetching and displaying data in chunks. 252 | 253 | 122. **Real-time Updates**: Enable real-time updates in a React application using WebSocket or a similar technology. 254 | 255 | 123. **Authentication with OAuth**: Implement OAuth-based authentication (e.g., OAuth 2.0) in a React application. 256 | 257 | 124. **Testing React Hooks**: Write unit tests for custom React hooks using React Testing Library and Jest. 258 | 259 | 125. **Custom React Router**: Build a custom router using React Router's low-level APIs to gain a deeper understanding of routing. 260 | 261 | ## Redux 262 | 263 | 126. **Redux Store**: Create a Redux store and define actions and reducers to manage state. 264 | 265 | 127. **Redux Actions and Reducers**: Implement Redux actions and reducers to handle specific features or data in a Redux store. 266 | 267 | 128. **Redux Middleware**: Add custom middleware to a Redux store to intercept and modify actions. 268 | 269 | 129. **Redux Thunk**: Use Redux Thunk middleware to handle asynchronous actions in a Redux store. 270 | 271 | 130. **Redux Saga**: Set up Redux Saga to manage side effects, such as API calls, in a Redux-powered application. 272 | 273 | 131. **Redux State Normalization**: Normalize the shape of the Redux store to efficiently manage relational data. 274 | 275 | 132. **Redux Selector Functions**: Create selector functions in a Redux application to efficiently retrieve and compute the derived state. 276 | 277 | 133. **Redux Immutable State**: Ensure that the Redux store's state remains immutable to prevent unintended mutations. 278 | 279 | 134. **Redux Persistence**: Implement state persistence in a Redux application, allowing the state to be saved and restored across sessions. 280 | 281 | 135. **Redux Testing**: Write unit tests for Redux actions, reducers, and selectors using testing libraries like Jest. 282 | 283 | 136. **Redux Middleware Testing**: Test Redux middleware, such as Thunk or Saga, to ensure correct behavior. 284 | 285 | 137. **Redux DevTools**: Integrate and use Redux DevTools to inspect and debug the Redux store. 286 | 287 | 138. **Redux Integration with React**: Connect a React application to a Redux store, dispatch actions, and map state to props. 288 | 289 | 139. **Redux Integration with Angular**: Integrate Redux with an Angular application using libraries like NgRx. 290 | 291 | 140. **Redux Integration with Vue.js**: Integrate Redux with a Vue.js application using libraries like Vuex. 292 | 293 | ## Angular 294 | 295 | 141. **Angular Component**: Create a simple Angular component and display it in a template. 296 | 297 | 142. **Angular Template Syntax**: Use Angular's template syntax to render dynamic content and data. 298 | 299 | 143. **Angular Two-Way Binding**: Implement two-way data binding in Angular to synchronize data between a component and its template. 300 | 301 | 144. **Angular Directives**: Use built-in and custom Angular directives to manipulate the DOM and control rendering. 302 | 303 | 145. **Angular Services**: Create and use Angular services to share data and logic across components. 304 | 305 | 146. **Angular Dependency Injection**: Apply dependency injection in Angular to inject services into components. 306 | 307 | 147. **Angular Routing**: Set up routing in an Angular application with multiple views and navigation. 308 | 309 | 148. **Angular Forms**: Build forms in Angular, including template-driven and reactive forms. 310 | 311 | 149. **HTTP Requests in Angular**: Make HTTP requests to retrieve data from an API in an Angular application. 312 | 313 | 150. **Angular Observables**: Use observables and the RxJS library to work with asynchronous data in Angular. 314 | 315 | 151. **Angular Pipes**: Create custom pipes in Angular to transform and format data in templates. 316 | 317 | 152. **Angular Directives**: Develop custom Angular directives to add behavior and interactivity to elements. 318 | 319 | 153. **Angular Modules**: Organize an Angular application into feature modules to improve maintainability. 320 | 321 | 154. **Angular Animation**: Implement animations and transitions in Angular components using Angular's animation features. 322 | 323 | 155. **Unit Testing in Angular**: Write unit tests for Angular components, services, and pipes using testing frameworks like Jasmine and Karma. 324 | 325 | 156. **End-to-End Testing in Angular**: Perform end-to-end (E2E) testing of an Angular application using tools like Protractor. 326 | 327 | 157. **Angular Routing Guards**: Create routing guards in Angular to control access to routes based on conditions like authentication. 328 | 329 | 158. **Angular Interceptors**: Implement interceptors in Angular to add global error handling, logging, or authentication to HTTP requests. 330 | 331 | 159. **Server-Side Rendering (SSR) with Angular**: Set up server-side rendering (SSR) for an Angular application. 332 | 333 | 160. **Angular Internationalization (i18n)**: Implement internationalization and localization in an Angular application. 334 | 335 | 161. **Angular Lazy Loading**: Optimize an Angular application by lazy-loading feature modules. 336 | 337 | 162. **Angular Custom Forms**: Create custom form controls and validators in Angular for complex form scenarios. 338 | 339 | 163. **Angular Testing Best Practices**: Apply best practices for testing Angular applications, including component testing and mocking dependencies. 340 | 341 | 164. **Angular Material**: Integrate and use Angular Material components and styles in an Angular application. 342 | 343 | 165. **Angular State Management**: Implement state management in an Angular application using libraries like NgRx. 344 | 345 | ## Vue.js 346 | 347 | 166. **Vue.js Instance**: Create a Vue.js instance and render data in a template. 348 | 349 | 167. **Vue.js Data Binding**: Implement data binding in Vue.js to update the UI based on changes in data. 350 | 351 | 168. **Vue.js Directives**: Use Vue.js directives to manipulate the DOM and add behavior to templates. 352 | 353 | 169. **Vue.js Components**: Create Vue.js components and pass data between parent and child components. 354 | 355 | 170. **Vue.js Event Handling**: Handle user events in Vue.js components and trigger actions. 356 | 357 | 171. **Vue.js Forms**: Build forms in Vue.js and manage form data using directives and methods. 358 | 359 | 172. **Vue.js Routing**: Set up routing in a Vue.js application with multiple views and navigation. 360 | 361 | 173. **Vue.js State Management**: Manage application state in Vue.js using Vuex. 362 | 363 | 174. **Vue.js HTTP Requests**: Make HTTP requests to fetch data from an API in a Vue.js application. 364 | 365 | 175. **Vue.js Lifecycle Hooks**: Utilize Vue.js lifecycle hooks to perform actions at different stages of a component's lifecycle. 366 | 367 | 176. **Vue.js Custom Directives**: Create custom directives in Vue.js to extend functionality. 368 | 369 | 177. **Vue.js Filters**: Define and use custom filters in Vue.js to format and transform data in templates. 370 | 371 | 178. **Vue.js Transitions and Animations**: Add transitions and animations to Vue.js components for smooth UI effects. 372 | 373 | 179. **Vue.js Unit Testing**: Write unit tests for Vue.js components using testing libraries like Jest. 374 | 375 | 180. **Vue.js End-to-End Testing**: Perform end-to-end (E2E) testing of a Vue.js application using tools like Cypress. 376 | 377 | 181. **Vue.js Routing Guards**: Create routing guards in Vue.js to control access to routes based on conditions like authentication. 378 | 379 | 182. **Vue.js Server-Side Rendering (SSR)**: Set up server-side rendering (SSR) for a Vue.js application. 380 | 381 | 183. **Vue.js Internationalization (i18n)**: Implement internationalization and localization in a Vue.js application. 382 | 383 | 184. **Vue.js Lazy Loading**: Optimize a Vue.js application by lazy-loading components and routes. 384 | 385 | 185. **Vue.js Composition API**: Develop components using the Vue.js Composition API for more flexible and reusable code. 386 | 387 | 186. **Vue.js Custom Directives**: Create custom directives in Vue.js to extend functionality. 388 | 389 | 187. **Vue.js Filters**: Define and use custom filters in Vue.js to format and transform data in templates. 390 | 391 | 188. **Vue.js Transitions and Animations**: Add transitions and animations to Vue.js components for smooth UI effects. 392 | 393 | 189. **Vue.js Unit Testing**: Write unit tests for Vue.js components using testing libraries like Jest. 394 | 395 | 190. **Vue.js End-to-End Testing**: Perform end-to-end (E2E) testing of a Vue.js application using tools like Cypress. 396 | 397 | 191. **Vue.js Routing Guards**: Create routing guards in Vue.js to control access to routes based on conditions like authentication. 398 | 399 | 192. **Vue.js Server-Side Rendering (SSR)**: Set up server-side rendering (SSR) for a Vue.js application. 400 | 401 | 193. **Vue.js Internationalization (i18n)**: Implement internationalization and localization in a Vue.js application. 402 | 403 | 194. **Vue.js Lazy Loading**: Optimize a Vue.js application by lazy-loading components and routes. 404 | 405 | 195. **Vue.js Composition API**: Develop components using the Vue.js Composition API for more flexible and reusable code. 406 | --------------------------------------------------------------------------------