React Developer Interview Questions

3,041 react developer interview questions shared by candidates

1.Promise and settimeout output ques console.log("start") setTimeout(() => { console.log("settimeout") }, 1000); var data=new Promise((resolve, reject) => { setTimeout(() => { console.log("inner") resolve("resolves") }, 0); console.log("second") }); console.log("end")
avatar

React Developer

Interviewed at CK-12 Foundation

4
Dec 12, 2024

1.Promise and settimeout output ques console.log("start") setTimeout(() => { console.log("settimeout") }, 1000); var data=new Promise((resolve, reject) => { setTimeout(() => { console.log("inner") resolve("resolves") }, 0); console.log("second") }); console.log("end")

give an array **[]** and target, return the count where the elements are matching to the target Input: arr[] = [2, -1, 1, 5, 7], target = 6 // // Output: 2 and then asked about optimizing the code and then 45 mins resume centric questions.
avatar

React Developer

Interviewed at Mindstix Software Labs

3.9
Apr 8, 2025

give an array **[]** and target, return the count where the elements are matching to the target Input: arr[] = [2, -1, 1, 5, 7], target = 6 // // Output: 2 and then asked about optimizing the code and then 45 mins resume centric questions.

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