Frontend Interview Experience (TazorPay) - Javascript and React JS Interview Questions

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#JavascriptInterview #ReactInterview #ReactJS
I interviewed for Frontend Engineer role at an Indian Fintech Company.
React JS and Javascript Interview questions from the Interview will be discussed in this video including topics like creating shopping cart, useReducer, DSA Questions, LRU Cache etc.
➡️ Book an Interview Preparation call with me -
topmate.io/roadsidecoder
🟦 Follow me on Twitter and u will clear your interview 🤓 -
/ piyush_eon
⭐ Support the channel and learn from me One on One -
/ @roadsidecoder
👨🏻‍💻 Code for Shopping Cart ( Round 1 - Ques 1 )
github.com/piyush-eon/fronten...
👨🏻‍💻 Code for Pie Chart UI ( Round 2 - Ques 5 )
codepen.io/piyush-eon/pen/LYd...
🔗 How I got Job Interviews through Cold Emailing -
• How I got Job Intervie...
🔗 Shopping Cart in React JS Tutorial -
• React Shopping Cart Tu...
🔗 Chat App Tutorial -
• MERN Stack Chat App wi...
🔗 Code Splitting in React JS -
• Code Splitting in Reac...
🔗 Cars24 Interview Experience -
• Frontend Interview Exp...
🔗 Unacademy Interview Experience -
• Frontend Interview Exp...
🔗 "This" Keyword Interview Video -
• Javascript Interview Q...
🔗 Javascript Interview Series -
• Javascript Interview Q...
🔗 React Beginner's Project Tutorials -
• React JS Project Tutor...
-------------------------------------------------------------------------
00:00 Intro
00:42 Round 1 - Machine Coding
00:46 Ques 1 - Shopping Cart in React JS
25:43 Ques 2 - Why I used useReducer in it?
26:37 Get Interview Preparation call with me
26:58 Round 2 - Problem Solving and Frontend Basics
27:12 Ques 1 - Pangram String Checker
33:40 Ques 2 - Convert 12hrs to 24hrs time
37:41 Ques 3 - 'this' output question
38:46 Ques 4 - Implement Least Recently Used ( LRU ) Cache
47:54 Ques 5 - Create this UI
52:54 Round 3 - Hiring Manager
53:04 Ques 1 - Project Showcase
53:56 Ques 2 - Code Splitting
54:21 Company and Salary Discussion
54:37 Get Interview Preparation call with me
-------------------------------------------------------------------------
Special Thanks to our members -Onur Karagülle
Srinivas Ayyagari
Saikiran K

Опубликовано:

28 июн 2024

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Комментарии : 205

@RoadsideCoder Год назад

Follow me on Instagram or you may fail in your interview 🤓 - instagram.com/roadsidecoder/ If this video gets good response, I will make more interview videos, so, do share it with others 🔥

@jaisharma545 Год назад

++ Follower;

@aahaan8647 Год назад

Please add video about jest unit testing

@akshayshinde2403 Год назад

I would like to know for what position you applied? SDE1 or SDE2

@gullukumar4497 Год назад

@@aahaan8647 bhai documentation padhna start kr warna tutorial dekhte dekhte zindagi nikal Jani h

@gullukumar4497 Год назад

@@akshayshinde2403 ye sare questions SD1 ke h bhai.

@ayushsingh8975 Год назад

Really need DSA with JS and it will be great to learn from you.

@sshikhar4290 Год назад

That's super helpful. Thank you so much for this interview Q&A series, helps soooooo much. If possible could you please make a DSA series using Js. Thanks in advance 🙂

@nikhildosapati8719 Год назад

The video was very helpful. Can you please create a series which have questions about DSA with JS? That would really help many developers. Thanks :)

@simionandrei5409 Год назад

Nice video Piyush! I think some videos about Generators and Data Structure will be really useful! Keep up the good work!

@rlxgroot278 Год назад

Great one. We want DSA series in javascript 😍

@ssmohanty153 Год назад

Thank you so much for this interview Q&A series, helps so much. If possible please make a DSA series using java script

@user-rj5hd7hh8p Год назад

Super great video makes excited to learn more and get started! Love the "stay organized" motto !!

@ganeshkhirwadkar4127 Год назад

Bahut hi sahi bhai ! Will help many of us definitely

@RAUSHANKUMAR-vu5hy Год назад

Your javascript tut is very helpful for me understand easily the core concept

@dineshkumargiri1659 Год назад

We are waiting bhaiya 🔥🔥🔥

@SalmanKhan-lx9kp Год назад

This video is great! You must create DSA with JS full playlist.

@nasarshaik5207 Год назад

yes, please make playlist for these type of DS and Algo

@manikdingra5938 Год назад

My man's dedication is over the top!

@pupstardao_ Год назад

Need more videos like this thanks for sharing keep it up brother

@rajeshprasadh3717 Год назад

suuuper helpful video, thanks man!

@aakashjyoti4580 Год назад

bro your videos really help me in my interviews too.. thnakyou..

@abhishekvishwakarma9045 Год назад

Awesome walkthrough of interview experience😎🔥

@harshsinghchauhan869 Год назад

Sir you have made my life ❤🌟

@RoshanBakhla Год назад

Bhaiya make more video related to frontend interview questions……👍

@RoadsideCoder Год назад

Definitely

@ashishmadan5700 Год назад

Amazing video very helpful, Please create DSA series in javascript 🔥🔥

@arunbohra4346 Год назад

this.name will not be undefined in the arrow function rather it would be an empty string as window object consists of a name property. If we use it in some other environment like nodejs then it would be undefined. BTW I like your videos they help a lot

@sojuthomas7727 Год назад

Thank you so much 😊

@munawarmunna2232 Год назад

Yes please make videos on DSA with javascript..

@nileshnilu7902 Год назад

Nice explanation sir ji 🙂🙂

@premsolanki7570 Год назад

We need a series of DSA Please do it sir !!!

@vikulkumar3376 Год назад

It will be great if you are creating a one series of DS with JS.

@nirmalshah9947 Год назад

A simplified version of pangram can be this too: const string = "when zombies arrive quickly fax judge pat"; const alphabet = "abcdefghijklmnopqrstuvwxyz"; const isPangram = (alphabet, str) => { let result const alphabetArr = [...alphabet]; for (let i = 0; i < alphabetArr.length; i++) { if (str.includes(alphabetArr[i])) { result = true; } else { result = false; } } return result; }

@SuperYoman100 Год назад

We can use Regex for this as well, right?

@nirmalshah9947 Год назад

@@SuperYoman100 You can, yes but personally, I tend to keep my programs as simple as possible. 10 years of experience with JS has taught me this at least

@divyummmmmm Год назад

Its not giving correct result

@Abhishek_raj_gupta 8 месяцев назад

after 10 yr developer will forget dsa and basic logic like you. run with str = "z" you'll get true lol

@htrOfLiesfub Год назад

You are the man

@arunbohra4346 Год назад

Instead of waiting 2000 years for create-react-app you can use vite. Only thing about vite is that it provides a minimal setup for development.

@MusicalOcean Год назад

Please create DSA playlist for Js

@gopisrinivas4485 Год назад

WNice tutorialch version do you use to get all the setup and polyphonic softs?

@cb559 Год назад

Data structures with Js is must needed in RU-vid but it's must a detailed one with all cases of data structures covered

@akrammohammed3581 Год назад

We need DS with js pls do a series on that

@rahulpandey8333 Год назад

We all need full DSA course with javascript.

@nikithamalkapuram8728 Год назад

Please Please do DSA with Js series. I rejected lot of interviews with this DSA only.

@subhadeepghosh2813 Год назад

why its getting removed autometically from cart ?

@pranavpatil8351 Год назад

Plz Do make a playlist on Data structures n alorithyms with JavaScript

@atharshakeel7277 Год назад

Loved the video Piyush. And yes, we require a DSA with JS tutorial playlist.

@user-zp1dv4yh5e Год назад

Yess , we need DSAwith JS

@TopTalentBridge Год назад

Definitely want to have a talk with you. I will book a call with on topmate in next 2 weeks for sure.

@shivamdhoundiyal6985 Год назад

Bhai super yaar....mazza aa gya !!

@RoadsideCoder Год назад

😎😎

@ravikumar7676 Год назад

Yes DSA series .. i m having so much problem in DSA part .

@matheusdiniz3743 Год назад

Amazing video, really liked it!! Just a question, were those rounds in a call or they gave you those tasks and you had to return them the answer to it?

@RoadsideCoder Год назад

All in a video call with screen sharing

@venkateshpachigulla Год назад

Do you know about conic-gradient and percentage variable before interview? I saw for the first time.

@ramkrushnaprabhu8027 Год назад

Sir please create tutorial on Ecommerce website creation by using MERN technology

@harshitjain3232 Год назад

Want you create dsa for javascript, containing interview like questions.

@anilraj9877 Год назад

yes please make dsa seriese

@rakaa31 Год назад

please create DSA with js series

@s1k_guy Год назад

Bro. Make vedios on javascript data structure please

@naazj8508 Год назад

Ur putting this video in this series after long time

@RoadsideCoder Год назад

Yeah

@adityanimgade2200 Год назад

you can do what you want!

@punitdixit861 Год назад

Hi Thanks for creating such good coding video. Please create DS/Algorithm in JavaScript

@CodeWithAhsan Год назад

If you're looking for visual examples for DS with JS, you can check the following, until he uploads one :) Playlist: ru-vid.com/group/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose Demo : ahsanayaz.github.io/fun-with-javascript/ Sorry for replying to multiple comments :) I feel like the playlist can benefit a lot of folks here.

@damon4907 Год назад

Yes we want dsa with js

@extux9090 Год назад

Yes please do it DSA+JS

@jhaganb9215 Год назад

Hi bro, love your content and the vibe of the video so wanna ask you a question that is is there a internship which is only for frontend developer and how can i apply for it. Looking for you reply

@KunalKumar-ch6gb Год назад

Bro create a separate DSA series in Js ❤

@sachinporwal4275 Год назад

please make a DSA series using Js

@romiljain7595 Год назад

waiting for series DSA + JS questions and what can be the level of questions interviewer can ask

@veereshkumar640 Год назад

it is very usefull video can you please create DSA with JS

@ishansharma3433 Год назад

Could you please explain while changing quantity you use the filter instead of map. As I understand, a filter doesn't change the value of elements of the array but filters out elements based on condition. Why this is giving correct output?

@jonnjon1 Год назад

Maybe you have already solved it but after a lot of research I understood what he did. Min 23:11 line 16. Cart Is being reassigned the previous version of itself but filtered: - the filter : it will first find the product with the provided id. - Then the ternary ( if) it will use the filter to asign a new value to Qty which is the new payload ( previously changed to +1 or -1 ) if the qty is 0 the filter will consider it as false, so the element will not be added to the filtered array. -after the : it will return the updated quantity Please correct my if I'm wrong, but this is the conclusion that I found after hours of being stuck with this masterful piece of code.

@RoadsideCoder Год назад

Its because filter will only return those filtered put elements but map will return filtered out elements along with empty slots for other elements

@TechNikky Год назад

23:23 if we go below 1 how the hack that item removes automatic from cart instead of changing carty quantity to 0. Please explain krdo boht confuse horha hai

@Frameddelight Год назад

cart filter would return action.payload.qty, and that would be used as a filtering condition, if it matches the product id and qty is returned, the 0 qty would be treated as false thus filtering that from the array.

@praveengopakumar5059 Год назад

great content

@abhishekvishwakarma9045 Год назад

After watching LRU cache question can you create a video on generators in javascript that'll be helpfull 😀

@RoadsideCoder Год назад

Sure

@ChhikaraBRUH Год назад

please create a DSA in JS series

@mohininarwade1108 Год назад

Also how do you copy paste so fast? whats the shorcut control? please tell

@munawarmunna2232 Год назад

Bro make videos on Mostly asked DSA interview questions..

@ANONYMOUS-wx5kc Год назад

Pls make a video on dsa with js

@ashishverma1382 Год назад

great video

@varuns3763 Год назад

Yes we need data with java

@0Ipsita0 Год назад

Yes, create separate DSA video playlist.

@RoadsideCoder Год назад

Already did, check my channel

@rajankhunt7002 Год назад

Good video.

@jahirhassan449 Год назад

create a series of dsa with js

@reethikavanaparthy6984 Год назад

please can u suggest a good resume builder

@ansumanmishra17 Год назад

plz make dsa video

@ujjwaljain9780 Год назад

Please create dsa with js

@darshitraj1694 Год назад

Recently,I gave Zepto's UI Interview. For Cart login I used Arrays to store every object's data. Basically, I used Array of Objects. I created full flexed working app. A day later, I WAS REJECTED. Feedback was - I should have used Objects for cart instead of Array :( People say anything to reject. Please help if there could be a better way to store cart items.

@darshitraj1694 Год назад

*logic

@rotembs Год назад

@@darshitraj1694 They wanted to see something like that probably: [{productName: "MacBook", price: 50, quantity: 2}, {...}]

@mohammadyasir-ci7gf Год назад

Basically interviewer wanted to store the cartItems like this. {“randomId”:{itemName:”mobile,price:10,quantity:10} where randomId is a cartItem Id, there are many ways to create randomId in js. I think interviewer was saying to use Object over array because of time complexity to remove an item from cart. If you use array the time complexity would be O(N) but if you use object the time complexity would be O(1). But wait, it doesn’t mean that Object will be always efficient, it’s totally depend upon the requirement. lets say if we want to know how many items are added in cart, or last 5 items added in cart. In these cases the array option will work better that object. Anyway I think as an interviewer its better to ask follow-up questions in these situations rather than directly rejecting the candidates. Remember we can’t make ourself 100% rejection proof, there could be any reason for rejection. Hope you must be doing great somewhere now😊

@DarshitRaj Год назад

@@mohammadyasir-ci7gf first of all, Eid Mubarak Yasir bhai. You answer is something I was searching for sometime now. Yes, the approach with objects are better with performance centric apps, maybe, which involves frequent addition/removal. I stayed in my current company for stable work enviroment.

@RAUSHANKUMAR-vu5hy Год назад

Please make more video fronted developer related

@RoadsideCoder Год назад

For sure. If this one does good I'll make more!

@sreekanthps5344 Год назад

bro please make dsa with javascript

@soumyaranjanpanda7532 Год назад

please create a DSA videos. That would be really helpful

@CodeWithAhsan Год назад

You can probably get started with this. Until he uploads a series. Playlist: ru-vid.com/group/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose Demo : ahsanayaz.github.io/fun-with-javascript/

@kishoreramesh8110 Год назад

Tazorpay? Or razorpay

@santhoshburgula6952 Год назад

Bro, I have gone through some videos, you are simply rocking and just you inspired me a lot. what should I do to pro in javascript like you ? is there any best book for javascript and as well as practice problems? please refer to any suggestions and root map. by the by, I'm from Non-IT background.

@RoadsideCoder Год назад

Hi Santosh, Thanks a lot for appreciation ❤️ Let's connect on instagram @RoadsideCoder. You can ask me your questions there.

@santhoshburgula6952 Год назад

@@RoadsideCoder Sorry, I don't have Instagram.

@jenso413 Год назад

just some advice, I know the focus wasn’t supposed to be on styling, but you adding all those inline styles made the first react question very hard to look at. If you don’t want to worry about styling in the video, just create a pre made css style sheet, and add classes as you go. Would make things a lot easier to watch

@RoadsideCoder Год назад

Agreed, Thanks for the advice.

@piyushchopade7878 Год назад

@@RoadsideCoder For how much work ex is this expected?

@RoadsideCoder Год назад

@@piyushchopade7878 1 year, Thie however can be asked in any experience

@rohitdesai3615 Год назад

Bhai mai mechanical se huun. Aur abhi start kiya huun web development What you think Please give any tips

@successmotivationpoint4925 Год назад

Was this interview for fresher or experience bcz level of question i think is not for freshers ?

@shacodes Год назад

Switch kr va ke hi manoge sir

@sakethpavan4901 Год назад

43:16 Is Map an ordered or unordered data structure in Js?

@shriharikulkarni07 2 месяца назад

Map is ordered

@purutopeta3099 Год назад

portfolio website down?

@ichiroutakashima4503 10 месяцев назад

I hate how you can make things so easy, yet when I'm APPLYING it myself, I blank out. I wish I could be good as you. Any tips? I've been studying for a year now and I feel like I've not done enough yet to learn the basic, I just don't feel confident at all.

@rajeshbagguva3005 Год назад

We need DSA with JS.......

@tabrezrahi Год назад

Please create a Series of DSA

@CodeWithAhsan Год назад

Playlist: ru-vid.com/group/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose Demo : ahsanayaz.github.io/fun-with-javascript/ If you're looking for visual examples for DS with JS, you can check the following, until Piyush uploads one :)

@rakaa31 Год назад

hey, so i been learning react for quit a while, i can make e-commerce, twitter like websites in react and know JS well so can i start to give interviews?? for frontend roles??

@haniahani5351 5 месяцев назад

Yes you can

@banglanews1368 Год назад

hii.. bro, i want to create inshort like news app from you.. please tell me how much money you want ? bro my budget is too low..

@rajesh-royal Год назад

were you selected, what package, perks they offer - you dont have to mention the CTC, just if it was competative

@gullukumar4497 Год назад

Bhai CTC bata diya to blacklist kr denge

@soumitahalder2424 Год назад

@@gullukumar4497 kon karegaa ?? Company ?

@atmanirbharladka4467 Год назад

Tazorpay ? It's so difficult to figure out which company it was. Unable to think of any other fintech with similar name. So subtle.

@RoadsideCoder Год назад

Lol, ikr I'm so smart 😎🤓

@esmamanyt7048 8 месяцев назад

I have one confusion in DSA question can we allow using other language like c++ and java because this is the most common languages for dsa and i also solved the lru cache question but in js and c++ approach is very different special implementation ???

@RoadsideCoder 8 месяцев назад

In frontend most interviewers won't allow any other language than JS

@rahulmore6810 Год назад

DSA with JavaScript 🙌

@indianinvestor1301 Год назад

Bro, im preparing fronrend interview need ur guidness ❤

@RoadsideCoder Год назад

Hey, you can book a call with me here - topmate.io/roadsidecoder

@rishiraj2548 Год назад

Naamste!

@sterlingarcher3943 Год назад

In Round 2, The array was declared as constant. Yet in the for loop, we are modifying the elements of the array Isn't it a violation?

@sunnyarora3557 Год назад

const keyword needed to be assigned something when they are declared and we can modify them whenever we want. Dont go with the name const it doesnt mean we need to keep it const.

@nitinshetty8187 Год назад

No we cannot modify any const variables, but in case of arrays or Objects we are storing the reference of that data structure. We cannot change const variables if its a number, string etc it will throw an error.