JavaScript Chapter 5 - Practice Set on Arrays | JavaScript Tutorial in Hindi #21

[@CodeWithHarry]

Handwritten Notes access karein and apne gao ki zameen mere naam karein 🤣😅 Here is the playlist: kzbin.info/aero/PLu0W_9lII9ahR1blWXxgSlL4y9iQBnLpR

[@syedaanam9811]

🤣🤣

[@arvajkhan683]

Harry brother typescript or javascript dono last tak dalna

[@dramaworld3213]

Hahaha kr diii

[@shurime693]

Bhai thank you so much 😍 Cz apka video bohot helpfull hain.

[@shreyas.sihasane]

Please read full comment 🥺 Harry bhai aap ekdam sahi padha rahe ho sab samaj Raha hai par.. Bhai ye JS jab me website banata hu tab Kaise use kare for example, agar muze menu bar ko click karne par sare options show ho jaye aur cross ❌ click karne pe options hide ho jaye aaise batao na plz... Muze yahi pe dikkat aa rahi hai You are doing great 👍❤️❤️❤️❤️

[@lol_me8]

Those who are not able to use prompt in replit, use this line at the very beginning of the code:- const prompt = require("prompt-sync")()

[@jeetsingh-sy5ij]

Can you explain more about it? How to actually use it?

[@badalbanjare3822]

Thanx Bro

[@hariomsingh18156]

bhai thanku tu bhagwan solution nhi mil rha tha thanks bhai once again

[@animeshanandcool]

thnx it worked

[@sawerasajid4309]

thank u so much i had to open console again n again thanks

[@HuzaifaMuhammadSIddique]

Q1. Create an array of numbers and take input from the user to add numbers to this array. Q2. Keep adding numbers to an array in Q1 until the user adds 0. Q3. Filter the numbers that are divisble by 10 from an array. Q4. Create an array of squares of a given number Q5. Use reduce to calculate the factorial of a given number from an array of first n natural numbers. (n being the numbers whose factorial needs to be calculated)

[@IamHamzaGujjar]

yr question 4 mein hum forEach kio nai use kr skty wo b to map ki tra har element pr function run krta ha?

[@Simranjeetkaur-xe5kr]

P

[@pluxjimina9565]

​​​@@IamHamzaGujjar yeah same question and I think it's because hme naya array create krna hai and for each performs the operation on the same array's elements..it doesn't create a new array while map() does that's my understanding but I don't know for sure if I'm right

[@AbhishekThakur-we5ub]

let arr = [1, 2, 3, 4]; let num = prompt("Amount of update"); let newNumber; let i = 0; while(i < num){ newNumber = prompt("Enter your number") ++i arr.push(newNumber) console.log(arr); } This is for when you have to decide how many number your want to add in your array First you have to give the Number of value you want to add and and the give the value you want to add

[@akhilesh123lokhande]

just make a small change in your code, you are taking neNumber as string so const prompt = require("prompt-sync")() let arr = [1, 2, 3, 4]; let num = prompt("Amount of update"); let newNumber; let i = 0; while(i < num){ newNumber = prompt("Enter your number") ++i newNumber = Number.parseInt(newNumber); //converting string to number arr.push(newNumber) console.log(arr); }

[@soumyajitsatpathy3627]

You teaching style is totally different from everyone and this style make us so simple to understand complex things. Thanks for such an valuable course. JS rocks..Harry you are awesome 👏

[@Mubashir7933]

Haris bhai JazakALLAH i did it for first time JazakALLAH let bdc = prompt("enter your number") let abc = [1, 2, 4, 5, 6, 7, 8] let ddc = abc.push(bdc); console.log(abc)

[@puneetshakya3001]

Hahahaha 😂 big boss mujhe hurt ho rha hai gazab Harry bhai 🔥❤️

[@abhijeet1611]

😂

[@aayushlamsal-i8e]

namaste harry Bhai !! Hum Nepal se hey...Apka Python series complete kar chuka aur JS ka bhi mast hey aab tak....Dil se bahut khusi lagta hey bhai apka videos dekh kar...Thank you sooo much brother from my bottom of heart !

[@shydcuk]

6:24 for Those who want to solve it using while loop a = [2,3,4,5] let b while (b != 0) { b = prompt("Enter The Number to be pushed : ") b = Number.parseInt(b) a.push(b) } console.log(a);

[@maddyshorts267]

This one is more accurate

[@shydcuk]

@@maddyshorts267 Thanks bro

[@sanaalam_]

Thank youuuu

[@shydcuk]

@@sanaalam_ Glad it helped you

[@vivekmishra8831]

One of the best playlist I have seen for javascript. I have learnt javascript during my college placement but aftet that i got the job in a company where I have mostly worked on sql but currently I am looking for a front end role I know most of the concepts already but during interveiw they asked basics thats why watching your videos from last 2 days on 1.5x speed just to revise everyhting

[@CodeWithHarry]

Code Backup Repository: github.com/CodeWithHarry/ultimate-js-course-youtube

[@utpalnath4640]

Definately . It is the best course on javascript even better than the paid ones. I am learning and enjoying your videos . I hope everyone will complete the series ....

[@muneebkarim3738]

Bhai sab batain alag Par Thumbnail Man Bht cute Lagta ho ❤️❤️❤️💜

[@jaiswalji1507]

😜

[@rishiraj2548]

😍👍

[@rishiraj2548]

Bahut hossiyaar Jaisi

[@flyhigh7250]

😂saala gay

[@sudip4930]

✊✊😄

[@r_gmer5278]

Code to find the factorial of any number let arr = [] let a; a = prompt("Enter the number "); a = Number(a); let x = a; if (a == 0) { ++a; arr.push(a); } do { arr.push(a); a--; } while (a > 0); let b = arr.reduce((p, q) => { return p * q; }) console.log("The Factorial of ", x, " is ", b); Thanku harry bhai or sir (:

[@aravinddev8708]

question-5 without reduce let pro=prompt("Enter A number"); pro=Number.parseInt(pro); let sum=1; for(i=pro;i>0;i--){ sum=sum*i; }; console.log(sum); what ever the number u want to give it will give the factorial of number that u have given.........--------by Aravind

[@omkarkotoju]

let num = [3, 5, 6, 4, 7, 8, 9]; let a = prompt("enter a number"); a = Number.parseInt(a); //we can use both unshift and push methods to add numbers to an array num.push(a) || num.unshift(a); console.log(num);

[@praneethsai9192]

Blockchain related projects and videos

[@pandat2473]

Extented version of question 5 in which no array is given before and only you have to enter a number, is here you can consider that as a reference: let a = Number.parseInt(prompt("Enter a Number:")); let arr = []; while(a!=0){ arr.push(a); a-- } const factorial = (x, y)=>{ return x * y; } let newArr = arr.reduce(factorial); console.log(newArr); 🙌

[@mubeen1589]

//maybe a smaller version :) let n = Number.parseInt(prompt(`Enter the nth number to calculate its factorial : `)); let arr = []; for(let i=0 ; i ${arr}`) console.log(`Factorial of ${n} is ` + arr.reduce((a, b) => {return a * b}) + `!`)

[@nishaathakurr]

Can you tell me why the prompt is showing error in replit?@@mubeen1589

[@SinmbfLost]

Q NO. 1 --> Extended version const arr=[]; let n=Number(prompt("How many numbers do you want to add in the array?")); for(i=0;i

[@MuhammadAzeem-fk6ep]

very nice

[@pravinsingh7605]

Q5: let a =Number.parseInt(prompt("Enter a number to calculate factorial for : ")) let i = 1 let arr = [] while (i { return a*b }) console.log("The value of ",a," factorial is: ",value)

[@abhijitpramanick3319]

What about when n = 0, will the program still run?

[@abhinavshukla5628]

aapne meme ka sahi upyog kiya hai harry bhai...padhe padhe hasne lagta hu to ghar wale bhi sochte hai ki beta coding sikhne ke chakkar mein pagla gaya hai.....great work

[@techavvy]

itna kyo padhte ho 😂😂

[@priyanshubehera8085]

Bro lots of love to you 😊😊... ye rhaa mera programs... PS qns ka jo ki mene apke solution dekhne se phle likha hye... Q1) let size=prompt("Enter the number of elements you want to add"); let arr=[ ]; while ((arr.length)!= (size)) { let i= prompt ("Enter the element"); arr.push(i); } console.log("Our array is:",arr) Q2) let size=prompt("Enter the number of elements you want to add"); let arr=[ ]; while ((arr.length)!= (size)) { let i= prompt ("Enter the element"); if (i == '0') { console.log('You entered zero so no more adding') break } arr.push(i); } console.log("Our array is:",arr) Q3) SAME AS YOURS :) Q4) SAME AS YOURS :) Q5)let size=prompt("Enter the number of elements you want to add"); let arr=[ ]; while ((arr.length)!= (size)) { let i= prompt ("Enter the number"); arr.push(i); } const factorial= arr.reduce ((d,f) => { return d*f} ) console.log("The factorial of the elements :", factorial )

[@talharashid3194]

// Chap no 5 practice problem no 1; let arr = ['']; for (let i = 0; i < arr.length; i++) { if(i < 5) { let a = prompt('Enter Your Value'); a = Number.parseInt(a); arr.push(a); } else { if(i==5) { arr.shift(); console.log(arr); } } } Thank You Harry Bahi

[@lolabcd1234]

That's ok but why to use such a lengthy method when you can do it just with do while loop?

[@priyambhattacharya8060]

Really excited!!!! Can't wait to see the next video.......

[@kanikajain2785]

Big Fan! Mazza aa raha hai Javascript padne mein. Yahan tak pohonch gayi and want to do the full course. Just abhi notes print kiye hain and replit pe sign up kiya.

[@paveenkua1949]

Harry Bhai video jaldi jaldi dalo Bhai intezaar nhi ho rha ,aap itne acche se padhate ho ki man lg jata hain please video jaldi jaldi daalo

[@SiddhantaPaul80]

Your Practice Sets Are Super Helpful! 👌🤩

[@azheruddin7156]

Seriously harry i never ever given any likes or comments in any posts of facebook, instagram videos or any youtube videos but after seeing of your js playlist I have to give a like or Comment so thanks a lot harry recently i started my course with watching your videos only 👍.

[@SoumobrataChanda-tk7cz]

Because of this Ultimate JavaScript course and React js course playlist. I got my first JOB. @Kolkata.

[@HamzaShahzadEB_]

I made the q5 a little tougher: If an array contains the 0 in it so simply print factorial is 1. Else get the 0 out of it and then use the reduce function to calculate factorial. ❤ It was fun doing it.

[@iamtheking95]

question5 best answer let arr =[] let a=prompt('enter a number whose factorial to be calculated') a=Number.parseInt(a) for(let i=0;i{ return a*b }) console.log(arr1)

[@COMBINEDENGINEERS-jy6ic]

Code to provide factorial of any given natural number let n = prompt ('Give a number for factorial') let array = [1] for (let i = 2; i{ return v1*v2 }) console.log (fac)

[@vickyrajwade8665]

Ye ultimate course bahut hi interesting chal rahi hai... Thank you ❤ Aur mere gao ki jamin apke naap💯💯🔥🔥👌🏞🏞🏞🏞🏞

[@rajkeshri1748]

Question 2 , let arr = [2,3,4,5] let a; for(i=0;i

[@vision_lc]

prompt chalega vs code me pahle (npm install prompt-sync) is ko terminal me install kro phir {const prompt = require("prompt-sync")({ sigint: true });} - ye code ko har program ke top me rkho jab prompt use krna hai

[@razarajput5712]

Problem 3 : let arr = [25 , 60 , 27 , 8 , 110 , 20 , 77 , 40]; let NewArr = arr.filter((a) => { return a % 10 == 0 }) console.log(NewArr)

[@minhazulislam4682]

0:47 'koi nagar palya ko bulaooo....' love from bangladesh bro.

[@supratiksarkar1195]

if you are doing in node.js environment then user input code is - const a = require('readline').createInterface({ input: process.stdin, output: process.stdout }); let arr = []; function askQuestion(i) { if (i < 10) { a.question(`Enter your ${(i+1)}th number = `, num => { arr.push(num); askQuestion(i + 1); }); } else { a.close(); console.log(arr) } } askQuestion(0); /* If you add console.log(arr) after askQuestion(0), the array will not be printed because the question method of the readline interface is asynchronous. This means that the console.log(arr) line will be executed before all the questions have been asked and answered, and before the arr array has been fully populated. */

[@Abhi-iw8kv]

while loop sahi rehta...Do while toh atleast ek bar chalega....pehli entry agr 0 hai toh woh array mei add hogi hi hogi

[@durgeshanand6774]

6:22 Do while loop m ek problem h.. If the first input itself is 0 , do while will add it to the array then break the loop. So its better to use while loop or for loop.

[@subirthecoder]

For those who are viewing today and understood Harry's last tutorial Use reduce method, to find factorial of each elements in an array

[@shabahathussain6405]

Really one of the best video series

[@Avineshlodhi]

sir , really helpful this course for me . Thankyou sir 😍😍

[@uttam0301]

Please put your js repels inside a js folder. It would be easy to access

[@gentlyroasting4049]

HARRY SIR WHERE SHOULD WE DISCUSS ANY FURTHER MORE QUESTIONS? IT WOULD BE GREAT if there is a group for us🙏.THANK YOU FOR TODAY'S CLASS!!🔥🔥 #HarryBhai

[@hameedkhan31634]

#HaaryBhai is so amazing 😍😍 Jab memes ajate ha to course or b mazedaar ban jata ha esa lagta ha k Jese course ma jaan dal diya ho It was so funny " big boss mujhe hurt ho Raha hai " And also this line "As a certified copy, pester " 😂🤣🤣

[@MuhammadAzeem-fk6ep]

copy paster

[@jeremiahranen]

You can use the below code to use prompt in vs code : const prompt = require("prompt-sync")() let a = prompt("Enter a number") This will work ...

[@ayush1344]

harry bhai ka raaj ma coding maza ma

[@HimanshuSharma-jw2qm]

question -5 const prompt = require("prompt-sync")() let a = prompt("Enter a factorial number : "); a = Number.parseInt(a); let b = []; for (let i =1 ;i < a+1; i++) { b.push(i); } console.log(b); let c = b.reduce((e1,e2)=> { return e1*e2; }) console.log(c);

[@muhammadtahirkhan6014]

Start mein baba g ka thulu smaj aya. Mgr ab kafi bten smaj a rahi hen. Level up bro...👌

[@savindersingh4523]

Eagerly waiting for Next Video!

[@rehangull8499]

harry bahi love han ap i love you apna lis course ha programing asan lag rahi from pakistan

[@niketansinha8684]

unstoppable javascript course

[@priyankarkoley]

HARRY VAAI.... TYPE-SCRIPT KA BHI EK COURSE BANA DO... plzzz🔥 BTW.. BIG FAN❤️

[@mr.innovation2693]

//square of each element let arr=[1,2,3,4,5,6,7,8,9,10] let crc=arr.forEach((element)=>{ console.log(element*element) }) console.log(crc)

[@YawmalQiyamah]

this is my first programming language harry pehle sir se utar rhi ab bhje m ghis rhi hai

[@mohammedmubeennalakath4333]

your channel help a lot.

[@sia...3965]

Question 4. Can also be done like this:- let num = {"1"+"2"+"3"+"4"+"5"} num.forEach((element) =>{console.log(element*element)})

[@rulebreaker4384]

Allhmdulliah done with lectr 21 .. love from pakistan

[@UVESHSANDSTONEWORKS]

// Ans 1 - in 3 way let arr=[1,43,22,4,56,12] let num=Number(prompt("Entre the number =")) // add valu in last arr.push(num) document.write(arr) // add value in starting of Array arr.unshift(num) document.write(arr) // add value on 2 arr.splice(2,0,num) document.write(arr) //#shohev

[@abhijitpramanick3319]

9:12 let n = prompt("Enter a number "); n = Number.parseInt(n); let arr = [1,1]; while(n){ arr.push(n--); } let fact = arr.reduce((h1,h2)=>{ return h1*h2; }) console.log(fact);

[@shaileshhacker]

10:46 I think Harry bhai next video me Guess the Number wali exercise karayenge.... Date and Time: 15-08-2022 12:57AM (midnight)

[@randomavghuman]

factorial of n natural numbers const array = [ ] let n = prompt("enter a number ") n=Number.parseInt(n) for(i=1;i { return num1*num2 }) console.log(factorial)

[@royfamily9273]

Thanks Harry Bhaiya

[@souvikbanerjee7781]

Nicely explained

[@meetjethva8399]

vaah harry bhai maja araha he

[@dhananjayvaish3276]

At 06:20 , in ques 2 , you have used do while loop , which will run atleast once , but what if agar user ne pehli hi baar me 0 type kiya prompt me tab bhi 0 push ho jaega array me jo ki nahi hona chahiye as per ques . Please correct me if i am wrong . so better to use while loop here i think

[@zohaib0335]

It is really a small question as compared to more advanced algorithm problems out there. as long as the loop terminates upon the user inputting 0, and it adds any numbrer the is not 0 to the loop, then you have got the problem solved, it doen't matter whether it gets added to the Array or not, as it wasn't mentioned in the Question Problem.

[@vigilanteer]

Do While ap ne is liye use krna he kyo ke ap chahte he ke user kam az kam aik dafa value enter kre. jabke while loop me aisa nahi ho skta (without advanced logic)

[@shoebkhan109]

LOVE YOU HARRY BHAI FROM MAHARASHTRA 💜

[@prashantbhatia26]

2:24 Guys if you are using node js in vs code and you want to use prompt in vs code then write below line of code at starting of your program const prompt = require('prompt-sync')(); I hope this will help 🙂

[@akashbheke7433]

How do i install prompt-sync globally.For every new practice set folder I have to install prompt-sync.Any Solution please. And npm install -g prompt-sync doesnt work. The Problem remains

[@prashantbhatia26]

@@akashbheke7433 kzbin.info/www/bejne/rpCVpIymoJxof8U i watched this video to run js in vs code . you should also check out

[@chiragshrivastava1530]

9:07 4th question mein forEach loop use krke bhi toh kr skte hain

[@vishk9765]

Please continue js course in Programmingwithharry channel

[@im_riyaj]

#HarryBhai apka bohot bohot sukriya guruji ❤

[@muhammadosama8556]

We can use let a =Number(prompt(""); to get number instead of string it is a short way

[@myself_ripon]

0:52 Ye Big Boss wala meme ZabarJust tha🤣👌 Pehli baar dekha aur Mazza Aya (Rahul Gandhi Edition) 🤓🤡

[@mridulghoshshanto5472]

// Here the all answer of chapter 5 // ---------Chapter 5---------- // Practice set 1 let marks = [45, 98, 67, 42, 65, 75, 87]; let newmarks = prompt("Enter Marks you want to add: \t"); newmarks= Number.parseInt(newmarks) marks.push(newmarks); console.log(marks); // Practice set 2 let marks = [45, 98, 67, 42, 65, 75, 87]; let add; do{52 add = prompt("Enter Marks: "); add = Number.parseInt(add); marks.push(add); }while (add != 0); console.log(marks); // Practice set 3 let marks = [45, 90, 60, 42, 70, 75, 80]; let divied = marks.filter((x) =>{ return x % 10 == 0; }); console.log(divied); // Practice set 4 let marks = [1,2,3,4,5,6,7,8,9]; let squre = marks.map((x) =>{ return x * x; }) console.log(squre); // Practice set 5 let marks = [1,2,3,4,5,6]; let fectorial = marks.reduce((x, y)=>{ return x * y; }) console.log(fectorial);

[@bhavyaverma6271]

hey i am facing problem in problem 2 using while loop can u help let a=[1,2,3,4,5]; let n; while(n!=0){ let n=prompt("enter nummber"); n=Number.parseInt(n); a.push(n); } console.log(a);

[@waqarbaloch5]

@@bhavyaverma6271 let a=[1,2,3,4,5]; let n; while(n!=0){ n=prompt("enter number") n=Number.parseInt(n) a.push(n) } console.log(a)

[@redhusky001]

@@bhavyaverma6271 let arr=[1,2] let n while(true){ n=prompt("Enetr the Number") n=Number.parseInt(n) if(n==0) break else arr.push(n) } console.log(arr)

[@IamHamzaGujjar]

Q4 mein hum Map ki jagah ForEach kio nai use kr skty wo b to har element pr function run krta ha can anyone explain.?

[@printsks8649]

Harry Bhai Pls Make a Tutorial of Lua as there is not any proper tutorial of Lua in Hindi !! A lot people will also agree on this fact !

[@usamabaig8591]

Sir Harry Great

[@sambedansahooridul1237]

As a cirtifier copy paster..you are doing a great job harry Bhai .....😂😂😂😂😂😂8:28

[@SayanMondal-t5n]

Thank you so much .

[@syedeliyaz1993]

Harry bhai is something good 👍 thanks bhayya u r making lot of lives very easy with this course

[@vivelafootball4835]

//Q5 const prompt=require('prompt-sync')(); let n=Number.parseInt(prompt("Enter the number whose factorial you need : ")); arr=[]; for(let i=1;i{ return x1*x2; }); console.log(fact);

[@kjhi89568]

4:58 This time i got scared ,lol sound could be a little bit lower otherwise everything is fine ... course is also going super ..thanks for making this course.

[@Haider00754]

haa yr baar baar up down krna padta hai sound kabhi tez bolte hai harry bhai kabhi dheeme to kabhi ekdm loud meme bajne lagta hai bich bich me and last me outro ki awaz bhi tez hai bahot raat me padhte hai sb disturb hota hai

[@umarjanbhat3819]

yes

[@maddyshorts267]

Example 3: let number = [17,18,19] let newnum= prompt("Enter a new number to add in array") newnum= Number.parseInt(newnum); while(newnum!=0){ number.push(newnum); newnum = prompt("Enter a new number to add in array"); newnum= Number.parseInt(newnum); } console.log(number)

[@sujal_thakkar]

very heartful ep i can say.

[@abhishekanand5146]

Bhaiya kuch beginning ke liye

[@sounaksaha1455]

SOMETHING BIGGGGG IS COMING!!!! CAN'T WAIT FOR THE NEXT VIDEO.

[@naimshk5162]

?

[@Marvel_studio16]

Sir mai bahut YAKKA kr rha hu apki video dekh ke 🙂🙂

[@t4truth113]

this course is so usefull thanks

[@shivamtiwari4293]

Knowledgeable👍👍👍 Thanks for making this JavaScript course🙏🙏🙏

[@yasirabbasi8948]

HarryBro doing great job this course really helpful.

[@DipikaBhatt-gu2fw]

Thank u sir u r great.

[@genztechman]

Amazing tutorial

[@hacker57]

Mja aa rha hee Harry bhai isse bich me MTT rokna plz🙏🙏🥺

[@Lv_La_Lr]

Harry Sensei OP❤❤

[@priyanshutyagi_02001]

Thankyou harry bhai❤

[@haryyOm6895]

amze this tut help too much harry bhai

[@bhoomikabhatia2515]

just type: const prompt = require("prompt-sync")(); if prompt is not working :)

[@amitranjeetjha1240]

This course is helpful

[@mr.innovation2693]

//question 1 answere let arr=[1,2,3,45,6,7] let a=prompt("enter number to add"); a=Number.parseInt(a) let ctc=arr.push(a) console.log(arr)

[@bepositiveberelax2589]

Harry bhai Frontend ky liye next js seekh hy lia backend ky lia knsa framework best hy for full stack js