React Developer Interview Questions

3,483 react developer interview questions shared by candidates

1. Explain the Virtual DOM, and a pragmatic overview of how React renders it to the DOM. 2. Compare and contrast incorporating mixins and enforcing modularity in React Components. (extend, createClass and mixins, HOCs) 3. How might React handle or restrict Props to certain types, or require certain Props to exist? then 4. UI Teach round, mostly questions on pure js concepts, Promise, Clousure, Recursion, CSS position property, call bind apply
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React Js Developer

Interviewed at Nicobar

4.3
Oct 7, 2018

1. Explain the Virtual DOM, and a pragmatic overview of how React renders it to the DOM. 2. Compare and contrast incorporating mixins and enforcing modularity in React Components. (extend, createClass and mixins, HOCs) 3. How might React handle or restrict Props to certain types, or require certain Props to exist? then 4. UI Teach round, mostly questions on pure js concepts, Promise, Clousure, Recursion, CSS position property, call bind apply

I believe it was Leetcode or Hackerrank or one of those sites, basically they sent me a link to with about 5 obscure questions...it was very abstract high concept where I was like "When or WHY would you ever encounter this or do this in the real world?" none of it seemed at all practical.
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Front End Engineer(React)

Interviewed at Vehicle History

4.1
Apr 19, 2019

I believe it was Leetcode or Hackerrank or one of those sites, basically they sent me a link to with about 5 obscure questions...it was very abstract high concept where I was like "When or WHY would you ever encounter this or do this in the real world?" none of it seemed at all practical.

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