home task with time limit of 90 minutes , the task was to build an analog and digital clock and then display a list of 5 clock on the screen
Lead Front End Developer Interview Questions
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Profile: Software Engineer ( ReactJs Developer ) Branch: Noida Sector: 62, Campus Mode: Google Meet Duration: 45min Round 1: Data Structure and Algorithm Two Questions were given 15min each for solving. Difficulty Level: Very Easy WAP to iterate from 1-100, in such a way that if the num is divisible by 3 print ‘Hello’, If divisible by 5, then print ‘Boy’. If divisible by both 3 and 5 then print ‘Hello-Boy’, else just print the number. Write a function that accepts a number and return the spiral matrix with that number. Ex: If number is 2: Corresponding Spiral Matrix: [ [1,2] [3,4] ] If number is 3: Corresponding Spiral Matrix: [ [1,2,3] [4,5,6] [7,8,9] ] If number is 4: Corresponding Spiral Matrix: [ [1,2,3,4] [5,6,7,8] [9,10,11,12] [13,14,15,16] ] Question about Bubbling and Capturing phase in Js. Difference b/w ES6 and ES7 features. What is bind and apply in Js. Round 2: Technical Interview Mode: Google Meet Duration: 45min Level: Easy What is SSR in React, Benefit of SSR and How to implement it. How to check if the website is SSR not Client Rendered or which parts are SSR in browser devTools. If there is a script that is taking a very long time, then how can you optimize it. Coding: Make a Modal, such that it will be shown only when button is clicked and Modal should be dynamically imported. D/w async, defer and normal script. If we have a loop like (let I = 0; I <= 1Million; i++ ), how will you optimize the code inside it Since it will probably slow down the browser. What is Web Worker and how it works? React lifecycle methods and explanation. How ComponentDidMount works in functional based components. ROUND 3: Managerial Mode: Google Meet Duration: 1hr Level: Easy How Javascript Engine works and How browsers interprets/processes it. How many connections can a web server have at a time. What is Webkit. What is the CORS or Update Method in RestAPI? Is there any Request Rate Limit that is defined by RestApi. Responsive Techniques’ in Framework. How to restrict the traffic from a particular traffic. ROUND 4: HR Mode: Google Meet Duration: 1hr What challenges you faced in your previous company. How was your colleague in your company? What are your salary expectations?
How would you test a solar-powered calculator?
What is reconciliation process in react
They focused on my basic interest for both interviews.
Fundamentals regarding technical skills like position in css, sprit images in css. Most question was from css.
Fale um pouco sobre si, que projectos tem?
Describe how you would design the frontend and backend of a paid parking lot and an app to book a space there.
Questions were very general and open ended, staff were very pleasant in person and over the phone leading up to in-person interview.
Have you ever dealt with an upset customer?
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