JavaScript Live Coding Interview (Mock) - Javascript interview questions

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Жыл бұрын

Live javascript coding round with a 1 year experienced candidate.
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Пікірлер: 117

@coderdost Жыл бұрын

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@tusharshrivas5798 Жыл бұрын

Sir in react how to do add to cart with out using redux

@anilraj9877 Жыл бұрын

yes, we can do that, first we have to make our function to reverse the string, the add the function to String.prototype, after this we can get that function in any where in the code.

@shaikmahaboobjani3655 Жыл бұрын

great content sir thank u for making this type of videos

@prakashbanjade4374 Жыл бұрын

21:05 Yes, it is possible in Js to create a reverse() method that can reverse any string and it can be done by adding your custom reverse logic to String.prototype

@coderdost Жыл бұрын

Yes I wanted same answer. Thanks

@suryateja9881 Жыл бұрын

My answer to the Sum 1: let string = "This is JavaScript Mock Interview"; let newS = ""; let stringBreak = string.split(" "); for(let i of stringBreak){ var chars = i.split(''); var reversedChars = chars.reverse(); var reversedString = reversedChars.join(''); newS += " " + reversedString; } console.log(newS)

@do_u_dsa Жыл бұрын

Sir, great content, inspirational

@nageshswamii3770 Жыл бұрын

function reverseString(str) { let revArray = []; let strlength = str.split(' '); for (let i = 0; i < strlength.length; i++) { let a = strlength[i].split("").reverse().join(""); revArray.push(a) } return revArray.join(" ") } console.log(reverseString("This is javascript code"))

@Its_Abhi_Thakur Жыл бұрын

let str = "This is JavaScript Code"; let result = str.split(" ").map((el) => el.split("").reverse().join("")).join(" "); console.log("result: ", result);

@nitishgupta8393 Жыл бұрын

1st : const rev = (str)=> { let lineRev = inp.split(" ").reverse() return lineRev.map(word=> word.split('').reverse().join("")).toString() }

@anujadi8366 Жыл бұрын

Great content!! Can catch the intensity by putting ourself to that question Hoping to expect a shorts video/ 2-4 mins one on various questions in future :) Thanks for the Wonderful content!!!

@coderdost Жыл бұрын

Yes. A video of JavaScript interviews questions is being compiled. After that may be coding questions

@prasadjoshi4009 Жыл бұрын

Thanks For This Video

@tredzVid 5 ай бұрын

Simple solution is const a = "This is Javascript Code"; const reversedWords = a.split(' ').map(word => word.split('').reverse().join('')).join(' '); console.log(reversedWords); //output - "sihT si tpircsavaJ edoC"

@codewithrohit839 Жыл бұрын

This is more simple😅 let num = "this is a string" a = num.split("") let b = a.reverse() let c = b.toString(); console.log(c)

@vikashojhabhojpuriya8396 Жыл бұрын

const string="This is Javascript code" let str1=string.split(""). reverse ().join("") let str2=str1.split(" "). reverse ().join(" ") Console.log(str2)

@AkashSingh-xf6bd Жыл бұрын

yes, we can using prototype

@pawansinghrawat7886 10 ай бұрын

ques1: const str="This is JavaScript" String.prototype.reverse=function(){ const newStr=str.split('').reverse().join('').split(' ').reverse().join(' '); console.log(newStr) } str.reverse()

@aparnas1613 Жыл бұрын

Great

@AkashSingh-xf6bd Жыл бұрын

reverse function is apply on the array only, not string or number

@rapper3470 7 ай бұрын

const str = "this is javascript code"; let ans = str.split(" ").map((elm)=>elm.split('').reverse().join('')).join(" "); console.log(ans);

@tusharshrivas5798 Жыл бұрын

21:41 answer is yes function reverseString(str) { return str.split("").reverse().join(""); } const word = reverseString("this is javascriprt code"); console.log(word);

@sumitpatil7473 Жыл бұрын

Yes possible three ways 1) str.split ("").reverse ().join ("") 2)let result ="" Inside for(let i=0;i=0;i--) { result1 +=Str[i] } Cl(result1)

@chiraglegend2670 Жыл бұрын

What you did -> if you use the split without a gap it will break the the string into 1 alphabet by alphabet and then if you reverse that it would reverse the whole thing Instead if you split it with a gap every element would be in the split and you would get all the element one by one sepeated by a space in the array now use the map function to iterate to all the array element -> at first now you need to split every single element by value now you dont need any space to it ,this will let you reverse each element and join that when you are done and then join the previous splitted array . str.split(" ").map(x=> x.split("").reverse().join("")).join(" ")

@chiraglegend2670 Жыл бұрын

and I am strange that he approached the same way and still you couldnt get it

@rohitroy3198 10 ай бұрын

let text = "Hello everyone"; let arr2 = text.split(' ') console.log(arr2) let arr3 = arr2[0].toString().split('').reverse().join("") let arr4 = arr2[1].toString().split('').reverse().join("") console.log(arr3) console.log(arr4) const finalaray = arr3.concat(" "+arr4) console.log(finalaray) break everything into pieces first, then reverse it and join... easy to think easy to approach.

@divyabalajee 11 ай бұрын

const maxWordCount=(str)=>{ const word = str.split(' ') const maxArr = word.map((e)=>e.split('').length) const output = Math.max(...maxArr) return output } console.log(maxWordCount("this is javascript code"))

@chinmayjain9705 4 ай бұрын

JavaScript, as in many other languages, strings are immutable. This means that once a string is created, its content cannot be directly modified. Therefore, any attempt to "reverse" the string will not alter the original string but instead create a new string that contains the reversed characters

@FreeTrial0315 Жыл бұрын

After solving the many dsa question this question look likes the 1+1

@nitishgupta8393 Жыл бұрын

2nd: const maxChar = (str) => { let arr = str.split(""); let count = 0; let res = ""; arr.forEach((ch) => { let innercount = 0; arr.forEach((el) => { if (el == ch) { innercount += 1; } }); if (innercount > count) { count = innercount; res = ch; } }); return res; };

@theway_up Жыл бұрын

const str = "This is Javascript Code!"; function reverseString(str) { const splittedStr = str.split(' '); let reversedStr = ""; for(let elem of splittedStr) { reversedStr += elem.split('').reverse().join('') + ' '; } return reversedStr; } console.log(reverseString(str));

@shivpuje555 10 ай бұрын

I have create word by word Reverse function without loop ; var a = 'this is javascript code'; function reverseWord(a){ var b = a.split(''); b.reverse(); b = b.join(''); b = b.split(' ').reverse().join(' '); console.log(b); return b } reverseWord(a);

@shaikmahaboobjani3655 Жыл бұрын

let str="mabujani" let res=[] for(let i=0; itimes) { times=res[char] max=char } } console.log(times,max)

@mr.editor7445 10 ай бұрын

Great Content. Love from Pakistan

@MrAmitbarthwal 3 ай бұрын

const A = 'This is javascript code'; const R = []; A.split(' ').forEach(element => { R.push(element.split('').reverse().join('')); }); console.log(R.join(' '));

@himanshuarora9567 Жыл бұрын

Please add some difficult questions for person having more than 4+ years of experience.

@jaspreetsingh-5259 Жыл бұрын

@codewithrohit839 Жыл бұрын

I will solve question first with my method and approach then will be come to see how interviewer solve the question

@astokum7 Жыл бұрын

21:31 Prototype Approch Will Help this scenario.

@parashyadav9721 Жыл бұрын

@WebDev970 Жыл бұрын

Sir it would be better if you tell at the end of the video how much package this person deserves so we can make an idea where we stand. Although these interviews are really helpful Thank you

@coderdost Жыл бұрын

We will optimise soon👍🏻

@Ayushkumar-il7jy Жыл бұрын

let arr= str.split(' ') let out= new Array(); for(let i=0;i

@pavankumarmantha Жыл бұрын

the code for this could as simple as this output = [] input_arr.map((item, index) =>{ output.push(item.split('').reverse().join('')); }); console.log(output.join(" "));

@AkashSingh-xf6bd Жыл бұрын

const str = "this is javascript code" function isReverse(str){ let newStr = str.split(" "); let result = [] for(let i =0;i=0;j--){ tempResult.push(innerStr[j]) } result.push(tempResult.join('')) } return result.join(' ') } const res = isReverse(str) console.log(res)

@dg_official96 Жыл бұрын

Reverse method not support in str

@RishabhSingh-jh7ij Жыл бұрын

let reverse=" " let text = "This Is Javascript Code"; const arr = text.split(" ").map((item)=>{ for(let i=item.length-1;i>=0;i--){ reverse+=item[i] } reverse+=" " return reverse }) console.log(reverse)

@akash_gupta_2090 Жыл бұрын

@NikhilPatel-bq7ck Жыл бұрын

Add Custom function with String prototype

@coderdost Жыл бұрын

Yes. That answer we needed

@SandeepSingh-ed8qe Жыл бұрын

i wish u as my interviwer

@gaurabgb Жыл бұрын

const ReverseString = (str) => { const s = str.split(" "); let dats = []; for (let i = 0; i < s.length; i++) { let dat = s[i].split(""); dats.push(dat.reverse().join("")); } const rev = dats.join(" "); return rev; };

@lalitsinghnegi1562 Жыл бұрын

// // question 1 // let data = "this is javascipt code" // let result = "" // for(let ele of data.split(" ")){ // result += " " + ele.split("").reverse().join().replace(/,/g , "") // } // console.log(result) // question 2 // let data = "this is javascipt code and you to find max char" // let result = {} // for( let ele of data){ // if(ele != " ") // result[ele] = result[ele]+1 || 1 // } // console.table(result) // let maxOccurence = "" // let max = 0 // for(let ele in result){ // if(result[ele] > max){ // max = result[ele] // maxOccurence = ele // } // } // console.log(maxOccurence + " => " + max)

@OctTEN_1010 Жыл бұрын

for question 1 , this is enough: const str = "This is JavaScript Code" console.log( str .split(" ") .map(word => word.split("").reverse().join("")) .join(" ") )

@raghbirsingh8585 Жыл бұрын

Sir I also want to give a mock coding interview like this.

@coderdost Жыл бұрын

form is available on community post

@gaganbaghel1377 Жыл бұрын

As strings are immutable in javascript so it is not possible to mutate the some string by making a reverse function

@coderdost Жыл бұрын

yes. we can't reverse original. but can return a Copy using ProtoType methods.

@gaganbaghel1377 Жыл бұрын

@@coderdost i like what you make around web development and js want to work with you

@coderdost Жыл бұрын

@@gaganbaghel1377 great. if you have time. lets connect at 9PM tonight ?? you can find my email on About section. I will share more details once you email me

@gaganbaghel1377 Жыл бұрын

@@coderdost ok we can but i am currently having aligned interviews for a week can we connect after that i will mail you as soon as possible

@coderdost Жыл бұрын

sure

@GargiArtGallery Жыл бұрын

str.split(" ").map((i) => i.split("").reverse().join("")).join(" "); For the First Question : Reversing String Word wise not whole at once

@jyzibzaidi6600 Жыл бұрын

come-up with single line approach let result = str.split('').reverse().join('').split(' ').reverse().join(" ") console.log(result)

@coderdost Жыл бұрын

good one

@fancybeing1296 Жыл бұрын

sir how can i find more interview questions like this ? I want to practice technical interview questions for JS starting from beginning to advance level, from which website you took these questions?

@coderdost Жыл бұрын

There is not a particular website for JS which I know. You can try - geeks for geeks they have good questions for coding- independent of languages..

@santoshalimkar2444 Жыл бұрын

const message = "The rain in SPAIN stays mainly in the plain" const result=message.toLocaleLowerCase().split(" ").join("") console.log(result) const maxcount=(result)=>{ const maxchar=[]; for(let i=0;i val === result[i]).length maxchar.push(char) } return Math.max.apply(null, maxchar); } console.log(maxcount(result.split("")))

@nizamph2022 Жыл бұрын

in the last problem you should have removed the empty string from the array. Otherwise, it would always give empty string has the largest count

@swayambadhe 5 ай бұрын

That's the developers problem to figure out not the interviewer

@multiverse915 10 ай бұрын

Sir i have a question are these mock interviews for the companies which prefer dsa students or the development companies

@coderdost 10 ай бұрын

These are not DSA-based.. they are mostly asked in companies that directly hire for a web role/intern. Mostly some startups or small service companies. Bigger companies may take DSA route

@birdsandwich2174 Жыл бұрын

Are there any resource/website where we can find this type of questions of this level?

@coderdost Жыл бұрын

Not 1 resource but you can search for any coding interview question list. They can be in different languages. Already there are too many such sites. geek for geeks/ hacker rank etc etc..

@OctTEN_1010 Жыл бұрын

Here, we can learn how not to do things , more than how to do things, it's still okay we getting something from this.

@coderdost Жыл бұрын

Yeah. Main objective is to put yourself in that situation. Once you are used to such situations- stress of interview is lower when its is in real

@sourabhlodhi1675 Жыл бұрын

sir 1 Q tha jab express se routing kar skate hai tou node me HTTP or URL module Ku banye video bana ke bata dijiye ga

@coderdost Жыл бұрын

Because http module lower level hai. Express usi ko use krke API bana easy kr deta h. API banana h to express hi use kro. But HTTP is not just for API - you can make different kind of request , for that HTTP module can be used. But 99% time express hi use kroge real life mein

@sourabhlodhi1675 Жыл бұрын

@@coderdost thanks sir

@akash_gupta_2090 Жыл бұрын

var reverseWords = function (s) { let res = ""; let word = ""; for (let c of s) { if (c === " ") { res += word + c; word = ""; } else { word = c + word; } } return res + word; };

@coderdost Жыл бұрын

this reverses whole string (every character), not the word order.

@harshvardhan2143 Жыл бұрын

//reverse the string function reverseString(str){ let tempAr=str.split(" "); let finalAr=[]; tempAr.forEach(val=>{ let stringAr=val.split(""); let string=''; stringAr.forEach(val=>{ string=val+string; }) finalAr.push(string); }) return finalAr.join(" "); } reverseString("This is JavaScript Code") // find max occuring char function findMaxOccuringChar(str){ let tempStrAr=str.split(""); let object={}; tempStrAr.forEach(val=>{ if(object.hasOwnProperty(val)) object[val]++; else object[val]=1; }) let maxChar=tempStrAr[0]; for(let i in object){ if(i!==" "&& object[i]>object[maxChar]){ maxChar=i; } } return maxChar; } findMaxOccuringChar("This is JavaScript Code and you to find max char");

@nibhasingh8882 Жыл бұрын

Hello sir.... Kya interview me jinki langwadge english hogi vhi interview de skta hai..?

@coderdost Жыл бұрын

Most companies take interviews in English only. and thats why we used english.

@Akshay-if5im Жыл бұрын

Can't we apply the split method first and then print the array in reverse order

@coderdost Жыл бұрын

But I think question is just to reverse the words in its place not the whole sentence. We can apply split to get words - but then also have to split each word again to reverse it and join

@Akshay-if5im Жыл бұрын

@@coderdost got it

@rajatraj3160 Жыл бұрын

We can create one prototype for it like , String.prototype.reversestring = function () { ///// Your logic And return string }

@coderdost Жыл бұрын

prefect

@adarshkhatri993 Жыл бұрын

Aapne channel logo change kr dia? Mtlb doosre colour ka laga dia..

@coderdost Жыл бұрын

Yes just for dark mode.any issue you faced after the change ?

@adarshkhatri993 Жыл бұрын

@@coderdost no, I haven't faced any issue regarding the same. And now your channel logo is gaining attraction bcz of its bright colours.💎 Good decision to change the logo.

@rushabhdave6648 Жыл бұрын

const str = "This is JavaScript" const stringReversalByWords = (str) => { const newStr = [] str.split(" ").map((elem) =>{ return newStr.push(elem.split("").reverse().join("")) }) console.log(newStr.join(" ")) } stringReversalByWords(str)

@interuptedgamerz7817 Жыл бұрын

When will the next video come?

@coderdost Жыл бұрын

Next on thursday

@coderdost Жыл бұрын

chalo kal hi dal dete hain

@PIYUSH-lz1zq Жыл бұрын

js coding round ka playlist ka link dedo !!

@coderdost Жыл бұрын

kzfaq.info/sun/PL2PkZdv6p7ZniAiKp2TCtJKFna6MCweYr

@siddharthroy78 Жыл бұрын

This interview is for which level of experience or this guy is a fresher?

@coderdost Жыл бұрын

He had some experience in IT but not from CS background

@jhs003 Жыл бұрын

Aapne jo code likha hai Ryan Dahl bhi dar jaye yaar mere se bada coder kon hai ye...Why you are making simple things complicated .. Here is the short,readable,understandable code const str = "I am the father of Javascript programming" const splitText = str.split(' ') const reversedSplit = splitText.map((word) => { return word.split('').reverse().join('') }) const finalreverse =reversedSplit.join(" ") console.log(finalreverse)

@coderdost Жыл бұрын

Candidate was live , so sometimes pressure makes things complex

@froggyy Жыл бұрын

It's painful to watch

@coderdost Жыл бұрын

Yes. But if you can solve faster. Its okay

@notyournormaldev1419 Жыл бұрын

In life not every thing can be fast. So do interview and mocks

@AmitGupta-lx2ze Жыл бұрын

let str = "NodeJS is a javascript runtime"; const reverseWord = (str) => { let arrStr = str.split(" "); console.log(arrStr); let newArrStr = arrStr.map((item) => { return item.split("").reverse().join(""); }); return newArrStr.join(" "); } let res = reverseWord(str); console.log(res);

@jaspreetsingh-5259 Жыл бұрын

const str="This is a Javascript code"; const strArr=str.split(' '); let newStr=""; for(let i in strArr){ newStr+=strArr[i].split('').reverse().join('') + " " } console.log(newStr)