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 🔥
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 🙂
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
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 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
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
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?
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.
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?
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.
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😊
@@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.
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
If you're looking for visual examples for DS with JS, you can check the following, until he uploads one :) Playlist: th-cam.com/play/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose.html 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.
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.
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
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.
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.
Waise Kitna Time lagega React Js sikhne mein.....ki interviewer koi problem de or hum solve kar le ? Aapne kaha se sikha tha javascript and react js ? Plzz reply
You can probably get started with this. Until he uploads a series. Playlist: th-cam.com/play/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose.html Demo : ahsanayaz.github.io/fun-with-javascript/
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 ???
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.
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.
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.
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??
Somebody help me in this problem Please write solution in javascript Write a function called do_allocation(number_of_people, number_of_buses) The function should return a list of number of people who can get into the next bus that comes in based on the following logic: Each bus’s capacity is the sum of the capacities of the previous two buses. Once all the people get in, then the buses can continue, but will have 0 people inside it. This is the case when the number of people are less and there are more buses. So after all the people are already boarded, then the remaining buses will have 0 people boarding. The output of the function is an array/list with the same length as number_of_buses. The total of this output array/list should be less than or equal to the number_of_people. The first bus’ capacity can be set to 1 by default. E.g. Def do_allocation(number_of_people, number_of_buses): …. Your code…. Return array[number of people got into first bus, number of people got into second bus, …. , number of people who got into last bus]
Why the product was removed when ghe quantity becomes zero, I'm not able to figure it out You didn't used any check to remove the item from cart if product qty is less than 1
@@saswatidas8750 yes exactly that's what I thought, when quantity is 0 it should show 0 in the cart component, but instead it is removed from the Array
@@yodahunter1412 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.
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 🔥
++ Follower;
Please add video about jest unit testing
I would like to know for what position you applied? SDE1 or SDE2
@@aahaan8647 bhai documentation padhna start kr warna tutorial dekhte dekhte zindagi nikal Jani h
@@akshayshinde2403 ye sare questions SD1 ke h bhai.
Really need DSA with JS and it will be great to learn from you.
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 :)
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 🙂
Great one. We want DSA series in javascript 😍
Bhaiya make more video related to frontend interview questions……👍
Definitely
Nice video Piyush! I think some videos about Generators and Data Structure will be really useful! Keep up the good work!
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
Your javascript tut is very helpful for me understand easily the core concept
Thank you so much for this interview Q&A series, helps so much. If possible please make a DSA series using java script
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;
}
We can use Regex for this as well, right?
@@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
Its not giving correct result
after 10 yr developer will forget dsa and basic logic like you. run with str = "z" you'll get true lol
Bahut hi sahi bhai ! Will help many of us definitely
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.
new Set(str.replaceAll(' ','').toLowerCase().split('')).size===26
For Pangram string checker.
Super great video makes excited to learn more and get started! Love the "stay organized" motto !!
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
Agreed, Thanks for the advice.
@@RoadsideCoder For how much work ex is this expected?
@@piyushchopade7878 1 year, Thie however can be asked in any experience
Loved the video Piyush. And yes, we require a DSA with JS tutorial playlist.
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?
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.
Its because filter will only return those filtered put elements but map will return filtered out elements along with empty slots for other elements
We are waiting bhaiya 🔥🔥🔥
Great video! Just one quick question.. was this for SDE 1 or SDE 2 position? Thanks in advance
sde 1
My man's dedication is over the top!
After watching LRU cache question can you create a video on generators in javascript that'll be helpfull 😀
Sure
yes, please make playlist for these type of DS and Algo
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?
All in a video call with screen sharing
Need more videos like this thanks for sharing keep it up brother
Please Please do DSA with Js series. I rejected lot of interviews with this DSA only.
This video is great! You must create DSA with JS full playlist.
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.
*logic
@@darshitraj1694 They wanted to see something like that probably: [{productName: "MacBook", price: 50, quantity: 2}, {...}]
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😊
@@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.
Yes please make videos on DSA with javascript..
Please create DSA playlist for Js
This is how I solved the Pangram Question:
function checkPangram(str) {
const arr = []
const sentenceArr = str.toUpperCase().split("").filter(item => item != " ")
sentenceArr.map((alphabet) => {
if (!arr.includes(alphabet)) {
return arr.push(alphabet)
}
})
return arr.length === 26 ? "Pangram" : "Not Pangram"
}
what is string has numbers.
were you selected, what package, perks they offer - you dont have to mention the CTC, just if it was competative
Bhai CTC bata diya to blacklist kr denge
@@gullukumar4497 kon karegaa ??
Company ?
Do you know about conic-gradient and percentage variable before interview? I saw for the first time.
Want you create dsa for javascript, containing interview like questions.
suuuper helpful video, thanks man!
Data structures with Js is must needed in TH-cam but it's must a detailed one with all cases of data structures covered
Awesome walkthrough of interview experience😎🔥
Bhai super yaar....mazza aa gya !!
😎😎
Definitely want to have a talk with you. I will book a call with on topmate in next 2 weeks for sure.
Ur putting this video in this series after long time
Yeah
Amazing video very helpful, Please create DSA series in javascript 🔥🔥
bro your videos really help me in my interviews too.. thnakyou..
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
We need DS with js pls do a series on that
Tazorpay ? It's so difficult to figure out which company it was. Unable to think of any other fintech with similar name. So subtle.
Lol, ikr I'm so smart 😎🤓
We all need full DSA course with javascript.
Hi Thanks for creating such good coding video. Please create DS/Algorithm in JavaScript
If you're looking for visual examples for DS with JS, you can check the following, until he uploads one :)
Playlist: th-cam.com/play/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose.html
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.
why its getting removed autometically from cart
?
Yes DSA series .. i m having so much problem in DSA part .
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.
you can do what you want!
We need a series of DSA
Please do it sir !!!
Plz Do make a playlist on Data structures n alorithyms with JavaScript
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
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.
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.
Hi Santosh, Thanks a lot for appreciation ❤️ Let's connect on instagram @RoadsideCoder. You can ask me your questions there.
@@RoadsideCoder Sorry, I don't have Instagram.
Yess , we need DSAwith JS
Thank you so much 😊
You are the man
Yes, create separate DSA video playlist.
Already did, check my channel
It will be great if you are creating a one series of DS with JS.
Waise Kitna Time lagega React Js sikhne mein.....ki interviewer koi problem de or hum solve kar le ?
Aapne kaha se sikha tha javascript and react js ?
Plzz reply
Fresher ko etna nhi puchte hey Bhai core aur advanced concept pey questions puche jaate hey, concepts clear hona chahiye, face to face interview mey questions puche jaate hey bass
Sir you have made my life ❤🌟
Sir please create tutorial on Ecommerce website creation by using MERN technology
WNice tutorialch version do you use to get all the setup and polyphonic softs?
please create DSA with js series
it is very usefull video can you please create DSA with JS
Yes we want dsa with js
Also how do you copy paste so fast? whats the shorcut control? please tell
Yes please do it DSA+JS
Why I found this interview so hard !! 🥲🥲🥲
Nice explanation sir ji 🙂🙂
Bro make videos on Mostly asked DSA interview questions..
waiting for series DSA + JS questions and what can be the level of questions interviewer can ask
Was this interview for fresher or experience bcz level of question i think is not for freshers ?
Bhai mai mechanical se huun.
Aur abhi start kiya huun web development
What you think
Please give any tips
please create a DSA videos. That would be really helpful
You can probably get started with this. Until he uploads a series.
Playlist: th-cam.com/play/PL2sQdFoGnLIgTJ4hP3ab4HoPOe4BT4ose.html
Demo : ahsanayaz.github.io/fun-with-javascript/
yes please make dsa seriese
Bro. Make vedios on javascript data structure please
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 ???
In frontend most interviewers won't allow any other language than JS
great video
Please make more video fronted developer related
For sure. If this one does good I'll make more!
case "ADD_TO_CART":
return { ...state, cart: [{ ...action.payload, qty: 1 }, ...state.cart] }; What does it mean??
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.
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?
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.
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.
please make a DSA series using Js
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??
Yes you can
Bro, im preparing fronrend interview need ur guidness ❤
Hey, you can book a call with me here - topmate.io/roadsidecoder
Somebody help me in this problem
Please write solution in javascript
Write a function called do_allocation(number_of_people, number_of_buses)
The function should return a list of number of people who can get into the next bus that comes in based on the following logic:
Each bus’s capacity is the sum of the capacities of the previous two buses.
Once all the people get in, then the buses can continue, but will have 0 people inside it.
This is the case when the number of people are less and there are more buses. So after all the people are already boarded, then the remaining buses will have 0 people boarding.
The output of the function is an array/list with the same length as number_of_buses.
The total of this output array/list should be less than or equal to the number_of_people.
The first bus’ capacity can be set to 1 by default.
E.g.
Def do_allocation(number_of_people, number_of_buses):
…. Your code….
Return array[number of people got into first bus, number of people got into second bus, …. , number of people who got into last bus]
How Much Level Of Experience to get these all Questions ?? . Really, Huge Subject and It's cover all the Important Concepts in JavaScript and React.js
It was for a junior role
@@RoadsideCoder Thankyou
please create a DSA in JS series
Bro create a separate DSA series in Js ❤
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..
DSA with JavaScript 🙌
Why the product was removed when ghe quantity becomes zero, I'm not able to figure it out
You didn't used any check to remove the item from cart if product qty is less than 1
He did, items in cart only render if cart.length is greater than zero
i have the same question...why is the product getting removed from cart when qty is zero, it should simply update the qty from 1 to zero right?
@@saswatidas8750 yes exactly that's what I thought, when quantity is 0 it should show 0 in the cart component, but instead it is removed from the Array
@@yodahunter1412 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.
43:16 Is Map an ordered or unordered data structure in Js?
Map is ordered
please can u suggest a good resume builder
Tazorpay? Or razorpay
so were you hired after smashing the interview or not ?
Pls make a video on dsa with js
Sir, DSA round nahi hua? I saw that you applied for Software Engineer role.
Nope
@@RoadsideCoder badhiyan hai bhaiya fir toh! :)
But I didn't join
@@RoadsideCoder no worries bhaya. Even Cars24 pays very well being a well established product based startup.
Yes we need data with java