Live coding challenge on JS Array methods on example data.
Ui Engineer Interview Questions
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1. Machine coding round - was about building Some grid based game using vanilla JS 2. DS/Algo -> One stack based question and the other question was based on Leetcode's Number of Islands 3. Product Sense -> Free flowing tech discussion 4. UI tech -> Debounce, throttling and other vanilla JS based questions. Some CSS questions based on flexbox and z-index 5. Hiring Manager
Mostly questions were scenario based where you need to give an optimal solution. AngularJs- routing, Ajax calls, services
nothing much about difficult went well.
Angular framework conceptual questions HTML/CSS/JS and testing also agile
Predict Output of code, mostly related to hoisting and this scope.
6 - Write a prototype for starWith in JavaScript - give example of polyfills using starWith - Once I write some lines - He said explain also one by one line.
5 - What is core web vitals - what is TTFB and INP - Tell me core web vitals and non core web Vitals names - what is TBT - how you debug performance in dev tools and give some names - what is LCP - again he said open flipkart home-page and tell what is LCP here - how we can improve LCP - how we can debug INP
3 - what is web-worker and Service Worker - I explained - then Counter question - If both are working in Background then how ew can improve performance - If JS is a single threaded then how it handle heavy computations and async operations - How multi-threaded achieved in JS ? - Give me example - In flipkart how we can use service worker. - what about the benefits of this.
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