React Interview | Frontend Developer | React interview questions 5 to 8 years 2023 #reactjs

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[user_abhigupta]

Hats off to humbly, he explains all topics

[Dhirajkumar-fbto]

There is many lib that can you use for calling an api javascript default use fetch, axios good choice, SWR Have also inbuilt fetch .. Basically combo of useEffect and api call save cache. Fast

[Dhirajkumar-fbto]

Yeah some time but when i used tailwind CSS that time class through error but some time it's work

[vijaykumar-pspq]

I have 13 years of experience, huge huge respect to the interviewer

[srinivasnahak]

The interviewer is polite but wrong about certain concepts
1. Class-based components don't go get converted to functional components and don't go through any extra step rather it's simpler to write functional based component and test that's why we use it.

2. If you don't pass the empty array to the useEffect it won't run just once but will run for every state change or side effect. This means if we haven't passed the empty array then let's suppose we're changing any state variable onClick event then this useEffect without an empty array will also run which doesn't happen when it has an empty array.

[meghabathla]

I learnt alot from this video, thanks for sharing ❤

[harvindersingh]

I wish all the Interviewers are like him❤

[sandiacgaming]

As a self-learner as a fresher i can can crack this interview. But 1 or 2 questions were learned from in this video.. thanks for thant❤

[SofiaGoyal]

For all those who are saying that the questions are fresher level or basic level, may be it missed some deep dive questions, but believe me most of these are still asked to me at like 9 years of experience, so don't underestimate them.

[Tiny_shortsHub]

In the question of useEffect interviewee was correct, basically when we we keep 2nd argument is empty it will only render once after component is loaded, but when we pass nothing as 2nd argument it will run infinite times and when we pass any state or props inside it, it will run when that state or props will change.

[berndeveloper]

I think I'm tech lead after watching this interview hahaha, some questions were useful though.

[AkashSingh-xfbd]

Hi Ui Dev Guide
if we are not going to pass nothing(mean not even a empty array ) in useEffect at that time it will run in every time when we render the page
Thanks'

[Dhirajkumar-fbto]

JSON.PARSE(RES) will not work here you need to do res.json() as the json() have internal method to parse but when you use the upper one it will do like externally which will not work

[Anonymous]

Fetch and Axios returns Promise whether success or rejected

[hritikchaudhary]

Interviewer is wrong for useEffect, 14:40

[Anonymous]

To use super in class based component, because without super, you can not access this.props in child component

[vickyfeb]

Your hiring for 5- 8 years exp but he possess only 4.5 years. Is it fine to round off 4.5 as 5 years of exp

[subhasismandal]

can you list all the questions with proper explanation? it will be helpful for us

[thstatusgems]

I was being asked tougher questions than these for 1.5 year exp.

[mayanknagle]

Super() - it calls the constructor of parent class. Without using super in constructor it gives reference error. We must use super() before accessing this