React Developer Interview Questions

3,483 react developer interview questions shared by candidates

basic questions of javascript, es6 concepts like let,var,const difference, callbacks, closures, promises, spread operator, rest, also made me do a basic counter problem in react which i did perfectly, event loop, closures, equality and triple equality {} === {}, output of this: 4+3+"3" ..
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React Developer

Interviewed at QBurst

4.1
Oct 27, 2021

basic questions of javascript, es6 concepts like let,var,const difference, callbacks, closures, promises, spread operator, rest, also made me do a basic counter problem in react which i did perfectly, event loop, closures, equality and triple equality {} === {}, output of this: 4+3+"3" ..

how to implement a Vehicle class extending a Car class in JavaScript. The child class will inherit and access methods and properties from the parent. create In js clicking a button adds new rows with an input box and a button CSS specificity es6 classes,js oops concepts create generic functions how will write test case for api calls, hooks
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Senior React Developer

Interviewed at Publicis Sapient

3.4
Dec 28, 2024

how to implement a Vehicle class extending a Car class in JavaScript. The child class will inherit and access methods and properties from the parent. create In js clicking a button adds new rows with an input box and a button CSS specificity es6 classes,js oops concepts create generic functions how will write test case for api calls, hooks

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