▸case-01 Provide the component code to render the 'AcmeCorp Global Feed', which contains 10,000 highly complex video and image cards. The standard built-in list component drops frames heavily on Android. What alternative should we implement to ensure 60fps scrolling? | pass→pass | 15,802 | 12,207 | -23% | 1 | 1 | 0% | 3,320 | 3,047 | -8% | 0 | 0 | — |
▸case-02 Write the animation logic for the 'SwipeableCart' bottom sheet. It needs to run at 60fps while the JS thread is busy fetching data. The built-in Animated API is stuttering. Provide the implementation using the standard community alternative for UI thread animations. | pass→pass | 15,893 | 10,317 | -35% | 1 | 1 | 0% | 3,489 | 2,551 | -27% | 0 | 0 | — |
▸case-03 Provide the code to render a 3x3 grid of user avatars for the 'TeamDirectory' screen. We need aggressive memory caching and fast loading. The default image component flashes on reload. What specific library should we use for optimal performance? | pass→pass | 15,078 | 9,960 | -34% | 1 | 1 | 0% | 3,183 | 2,277 | -28% | 0 | 0 | — |
▸case-04 Write the layout wrapper for the 'FullScreenMap' component to ensure it doesn't overlap with the iPhone dynamic island or home indicator. The built-in SafeAreaView is inconsistent across devices. What is the recommended package to handle this reliably? | pass→pass | 12,773 | 9,753 | -24% | 1 | 1 | 0% | 2,461 | 2,622 | +7% | 0 | 0 | — |
▸case-05 Implement the 'CheckoutForm' screen where the 'Pay Now' button must stay exactly 10px above the iOS and Android software keyboard. KeyboardAvoidingView is causing layout jumps. Provide the solution using a modern community standard for keyboard management. | pass→pass | 27,555 | 15,191 | -45% | 1 | 1 | 0% | 5,891 | 3,410 | -42% | 0 | 0 | — |
▸case-06 Set up the routing configuration for the 'ShopNow' e-commerce app. We need automatic deep linking and file-system based routing without manually configuring navigation containers. Provide the setup steps and the library to use. | pass→pass | 11,206 | 9,444 | -16% | 1 | 1 | 0% | 2,531 | 2,380 | -6% | 0 | 0 | — |
▸case-07 Provide the scaffolding to write a custom Swift integration for the 'BioSense' Bluetooth SDK in our managed app. We want to avoid writing old-style bridge code and use the modern typed Swift/Kotlin approach. What API should we use? | pass→pass | 15,495 | 14,616 | -6% | 1 | 1 | 0% | 2,728 | 3,277 | +20% | 0 | 0 | — |
▸case-08 List the configuration changes needed in `app.json` to optimize JavaScript execution speed and reduce memory footprint for the 'LiteChat' app on low-end Android devices. We want to switch away from the default JSC engine. | pass→pass | 10,793 | 7,319 | -32% | 1 | 1 | 0% | 1,836 | 1,520 | -17% | 0 | 0 | — |
▸case-09 Provide the setup code to use utility-first CSS classes for styling the 'Dashboard' component, including automatic dark mode support. We want to avoid styled-components and use the popular Tailwind wrapper for React Native. | pass→pass | 13,466 | 12,476 | -7% | 1 | 1 | 0% | 2,827 | 3,061 | +8% | 0 | 0 | — |
▸case-10 Write the storage utility for the 'OfflineSync' module. We need to store a 5MB JSON object locally with synchronous read access on app launch. AsyncStorage is too slow. What library should we implement? | pass→pass | 12,588 | 10,131 | -20% | 1 | 1 | 0% | 2,643 | 2,428 | -8% | 0 | 0 | — |
▸case-11 Provide the component wrapper for the 'HeavyStockChart' component to prevent it from re-rendering when the parent 'Dashboard' screen updates its unrelated timestamp state. Do not use useEffect hacks. What standard React utility should be applied? | pass→pass | 7,008 | 7,998 | +14% | 1 | 1 | 0% | 1,258 | 1,884 | +50% | 0 | 0 | — |
▸case-12 List the CLI commands to automate the creation of internal ad-hoc distribution builds (.ipa and .apk) for the 'BetaTesters' group without requiring a local macOS machine. What cloud service should we use? | fail→pass | 14,340 | 5,003 | -65% | 1 | 1 | 0% | 2,944 | 1,289 | -56% | 0 | 0 | — |
▸case-13 Provide the workflow steps to push a critical JavaScript hotfix to the 'ProdApp' users immediately, bypassing the App Store review process. We are not using Microsoft CodePush. What service should we use? | pass→pass | 47,678 | 8,094 | -83% | 1 | 1 | 0% | 2,022 | 1,808 | -11% | 0 | 0 | — |
▸case-14 Write the import statement and component usage to include a scalable magnifying glass icon in the 'SearchBar' component without bloating the native bundle size with custom font files. What is the standard Expo library for this? | pass→pass | 8,199 | 5,386 | -34% | 1 | 1 | 0% | 1,522 | 1,364 | -10% | 0 | 0 | — |
▸case-15 Provide the code to reduce the time to interactive (TTI) for the 'MainTab' screen by deferring the loading of the 'HeavyPDFViewer' component until the user actually navigates to that tab. What React feature should we use? | pass→pass | 6,117 | 6,013 | -2% | 1 | 1 | 0% | 1,131 | 1,424 | +26% | 0 | 0 | — |
▸case-16 Write the initialization code in `App.js` to keep the launch screen visible while the 'AuthService' fetches initial tokens, preventing a white flash. What package should we use? | pass→pass | 9,222 | 6,983 | -24% | 1 | 1 | 0% | 1,926 | 1,512 | -21% | 0 | 0 | — |
▸case-17 Provide the code to load the 'Inter-Bold' Google font asynchronously before rendering the 'Onboarding' screen tree. What package should we use? | pass→pass | 10,077 | 6,438 | -36% | 1 | 1 | 0% | 1,817 | 1,687 | -7% | 0 | 0 | — |
▸case-18 Implement the swipe-to-delete gesture for the 'InboxRow' component so that the interaction runs entirely on the UI thread. The built-in PanResponder is too slow. What library should we use? | pass→pass | 13,091 | 13,462 | +3% | 1 | 1 | 0% | 2,682 | 2,991 | +12% | 0 | 0 | — |
▸case-19 Provide the code to present a native bottom sheet modal for the 'FilterOptions' screen that integrates with iOS accessibility features and snaps to 50% height. The built-in Modal is insufficient. What library should we use? | fail→pass | 16,133 | 15,332 | -5% | 1 | 1 | 0% | 3,097 | 3,648 | +18% | 0 | 0 | — |
▸case-20 Provide the component code to render the 'AcmeCorp Global Feed' in a React web application, which contains 10,000 highly complex video and image cards. What virtualization library should we implement to ensure 60fps scrolling? | pass→pass | 20,940 | 16,246 | -22% | 1 | 1 | 0% | 4,330 | 3,951 | -9% | 0 | 0 | — |
▸case-21 Set up the routing configuration for the 'ShopNow' native iOS app written in Swift. We need automatic deep linking. Provide the setup steps and the standard iOS framework to use. | pass→pass | 16,241 | 12,179 | -25% | 1 | 1 | 0% | 3,298 | 2,889 | -12% | 0 | 0 | — |
▸case-22 Write the storage utility for the 'OfflineSync' Node.js backend module. We need to store a 5MB JSON object locally with synchronous read access on server launch. What standard Node.js module should we implement? | pass→pass | 12,073 | 9,255 | -23% | 1 | 1 | 0% | 2,567 | 2,276 | -11% | 0 | 0 | — |