Settimeout Promises Sequential Api Calls React Native Interview 9 2

Summary

set timeout with zero milliseconds doesn't run immediately. And a login, then profile, then posts flow can't run in parallel. Async doesn't mean free. Too many A home screen needs the profile, notifications, and settings. None depend on each other, so why wait for them one by one? Close the app, reopen it, and the user is still logged in, still in dark mode. Something saved that data on the device. Takeaway: ... Tokens that must never leak, an app that slows down after an hour, notifications that must arrive while it's closed, and three ... A function that runs the moment it's defined. Callbacks nested so deep they form a pyramid. Takeaway: IIFE = private scope that ... JavaScript has exactly one thread. Yet your app fetches data, runs timers, and responds to taps, all at once. Takeaway: One ... our new app Senty: senty.app - easily share links and text from your iPhone or iPad to your Windows PC by ... Microtask Queue & How async/await Works Internally — explained the way strong candidates answer it in a The interviewer stops asking definitions, and asks: your app feels laggy, what do you do? This is where offers are won. Takeaway: ...