React, State, Props, Prop drilling, redux, context api, usecallback hooks, usememo hooks, usestate and so many easy basics questions such as map funcn, filter, reduce.
React Developer Interview Questions
3,476 react developer interview questions shared by candidates
React's basics, Javascript basic & advanced.
* que es react? * componentes vs functions * asincronia en javascript * event loop en js * dom vs virtual dom.
Take-home assignment: Given a style sheet (but no design mockups), make a React web frontend that stylistically matches Bree's existing product, and reproduces several of Bree's core features.
"System design" interview: - After trying Bree's mobile app, what feedback do you have to improve the app? How would you fix those bugs? How would you prioritize/assign those tasks? - Here are some product issues Bree is presently facing. How would you deal with those issues?
What do I know about Zenjob?
Why to use React over Vanilla JavaScript?
1. How will you create a react element without JSX? 2. const a = [1, 2, 3] const b = a.filter(ele=>ele*2) console.log(b); Output: [ 1, 2, 3 ] 3. Write a function that takes n number of arrays of integers and returns an array of distinct integers i.e the integers should appear only once among the input arrays. Example: [1,2,3], [2,3,4], [3,4,5] => [1,5]. Note: number of arrays can be n. The function should work when inputs are increased or decreased. solution: function distinctVeal(arr){ let str=[]; for(let i=0;i
The interview has a total of lets say 3 stages, 1.Introduction 2.Questions on React like react routing,keys in react, etc. 3.To solve a problem ,Write a function that takes n number of arrays of integers and returns an array of distinct integers i.e the integers should appear only once among the input arrays. Example: [1,2,3], [2,3,4], [3,4,5] => [1,5]. Note: number of arrays can be n. The function should work when inputs are increased or decreased.
Requirements: build a carousel. by default display 4 blocks at once. navigation is made with next and previous buttons. Next button should be disabled, if user is at the very end of the carousel. Previous button should be disabled, if user is at the very beginning of carousel. Clicking on next/previous buttons shows next/prev 4 carousel blocks accordingly. The source of carousel block is endpoint on server that return following JSON: [{ title: "First Block", images: [url1, url2, url3] }, { title: "Second Block", images: [url7, url8] } ,...] Display a random image for each block from the set of images.
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