Promise .then() and .catch() | JavaScript Tutorial in Hindi #55

[@swayampattanaik1522]

jab jab dar lgta h na samaj aane ka, and when harry bhai ensures us that "Thoda mera saath de do samaj mein bilkul aayega" He just kills our fear and boosts self confidence Love you Harry

[@banojkumarmishra6687]

The way he conquers every language is just phenomenal. Even programming languages are now scared of Harry bhai The God of code🎉

[@BruceLee-bt2mq]

In simple words: Promise cosists of two functions, and it returns one of the function's output(either resolve or reject). If it is resolve function then we use Promise.then to output it, if it is reject function then we use Promise.catch to output it. This is what I understood, if it is wrong please let me know, I will learn.

[@aakarshansubedi174]

you're absolutely correct

[@vortexdeo4545]

Kudos to editor for taking this seriously and not inserting memes in between explanation

[@riteshkatare1433]

ha bhai

[@UnitedIndia397]

correct

[@sanskarmalviya3493]

Actually memes were good😂

[@SaadCodes]

00:03 Learn how to perform tasks after a promise is fulfilled using .then() and .catch() methods 02:14 promise.state explained 04:10 A promise can be fulfilled or rejected 06:06 Promises in JavaScript allow for parallel execution and handling of resolved and rejected promises. 08:12 Using .then() and .catch() methods in JavaScript promises 10:00 Understanding Promise .then() and .catch() in JavaScript 12:10 To handle errors in promises, use .catch() or provide null as the first argument in .then() 14:56 Catch errors to handle potential issues in the code

[@technubie]

2 baar video dekhi, tab jake thora bhut concept clear hua

[@ganeshkirtane5998]

Const books=new Promise((resolve,reject)=>{ Const available=false If(available){ resolve("book is available") } else{ reject ("book is not available") } }); books .then((data)=>{ console.log("congratulations,data) }) .catch((data)=>{ console.log("sorry,data") }) . finally (()=>{ console.log("thank you visit again") })

[@AnwarAmazai]

Love you harry sir , Apni jindagi main ap jaisa teacher nahi dekha ❤️ Thank

[@ashutoshmishra1860]

Jo nasha hrry bhai ki video me h voo kahii nhii☺️ I m a true fan of hrry bhaii

[@sufyanbaig8269]

You are doing a wonderful job! People like you are helping others to achieve their dreams. A million thanks to you May Allah bless you

[@nidhishsrivastava4868]

allah ki maa ki c@ut mein brahmos

[@Saniyakhan0729]

Harry bhai God bless and you have been helpful for me❣️

[@Let-s_Entertain....]

Thank you So Much Harry Bhai, coz of you I got a job with 9 LPA . again Thank you so much HARRY sir Hats off

[@akmachinetools1machine306]

How man? Can you tell me the roadMap that you followed.

[@prernajha4529]

hi sir, I just came across your videos today and I must say I am so grateful that you are teaching us. Just a small request - Could you please make a playlist on SQL as well?

[@SiddharthSingh-up2gs]

no

[@amt.7rambo670]

yeah bro SQL

[@adityakanade7165]

i Love Promise ,this is very interesting topic😍

[@BaapDeveloper]

Keep Reading Keep Learning Keep Growing harry bhaiya best 💗

[@SubhanKhanPathaNN]

To Better Understand: let p3 = new Promise((resolve,reject)=>{ setTimeout(() => { let data = {Server: BigInt("67586387635873648"), Ping: BigInt("67586387635873648")} if(data.Server === data.Ping){ resolve(data) }else{ reject(new Error('Server is not same as ping!')) } }, 5000); }) p3.then((X)=>{ console.log(X) },(Y)=>{ console.log(Y) })

[@millionviews6427]

Great Video harry bhai ... Bohot achhe teacher ho ap Happy Teachers Day to you

[@samialvi4226]

Harry sir is one of a kind💞

[@sonalidhar4347]

Thank you for sharing such a precious knowledge with us..❤

[@ishitachakraborty7990]

This was such a great help for me , after years of going through monotonous definitions , i finally understood ...Thank you sir !

[@itz_me_imraan02]

Thnx for making it crystal clear ♥

[@maaa3347]

Thanks you so much sir 🌹🌹.Happy birthday harry sir .Love you from heart

[@maaa3347]

[@aloksolanki5485]

My Zomato order got cancelled as i was watching this video 😂

[@nihalwaseem7106]

Promise got rejected , need another promise to get Zomato order 😂

[@RaviKumar-f1v5x]

Promise value was rejected but state was fulfilled.

[@dharampreetsingh9099]

And my parcel from meesho that I was waiting from last 5 days is cancelled right at the moment 😂

[@santoshkharel1083]

HARRY BHAI JINDABAAD 😍

[@akhilesh-kamat]

A Promise is in one of these states: pending: initial state, neither fulfilled nor rejected. fulfilled: meaning that the operation was completed successfully. rejected: meaning that the operation failed.

[@adibpathan41833]

harry bhai your teaching is very well but when you teach any topic then you can also teach us when we use promise and where we use also 😇

[@rigotomy7129]

Bro can u make a series on how to make the next js - ecommerce site secure and what security measures can we take at d time of building next js website..this can be an extension of ur next js tutorial. Also if possible then after this can u start web 3 coding tutorial. Thanks bro Ur tutorial helps us understand the concept easily spl for people like me who are not from programming background.

[@MehtabButt-q2f]

alo paratha, 😆 you have such an amazing way of teaching.

[@Aniket-ik3uj]

next level typing sound...🤩

[@nabarkaroy3397]

Thanks a lot sir, abh concept clear 😀

[@Ayush77-04]

Jisko samajh nahi aaya bo focus hoke with practice baar baar dekho ho jaayega but don't give up

[@muneebali9811]

i can not wait for more videos.. Waiting

[@ahmedshah2441]

Sir Harry! Please make an Game development roadmap. With frontend and backend.

[@itz_me_imraan02]

Add one or two advance projects too 💚

[@lakshsinghania]

do u know any beginner projects where we use this promises concept in depth to understand clearly the real meaning of promises?

[@itsaayush7357]

You can make a simple weather application by using just promises. In which u fetch weather data from api and display it to user

[@nitinmandale7696]

I just wanna give a suggestion that you should add the content of the tutorial before hand soo that we can see what topics you are going to cover and what you gonna cover next... i want to know what things you are going to cover next soo please drop a text file of the content page

[@Lv_La_Lr]

I love you Harry Sensei ❤❤

[@DecodeReels]

Bhai star my journey today 😊

[@rupendraediting]

Nice Harry bhai🔥❤️❤️

[@arshad7243]

Harry bhai ek question paper bnakr dedo jo bhi aapne abhi tak krwaya h plz jisse hme pta chal ske ki ham kitne paani m h😀🥰

[@Android-17]

then & catch🤯 #JavaScript

[@nikhil_74]

Your videos are really helpful for me

[@BantyPatro]

Good evening Harry bhai. ♥️♥️♥️

[@samirrobin3524]

Thank you so much Sir for this amazing content ❤️❤️❤️❤️

[@devtomar8472]

❤❤ se Thank you for 55

[@technikalproblem6780]

Thank you sir for creating this video!

[@riteshkatare1433]

akki

[@feels_alive]

setTimeout used by harry is use to increase the youtube video length by 5 sec 😜

[@herainpratapsingh1972]

kudos for the efforts you put in

[@malikfahad007-l3p]

kia baat ha harry bhai ap demotivate nai hony dety

[@xecor4450]

Bhai please jb record krte to filter lgana(compressor) please to suppress the peaking.. kyi bar kaan mein chubti awaaz.

[@Lv_La_Lr]

Harry Sensei OP ❤❤

[@nk-rb1dn]

Happy teacher day 💕💕❤️❤️

[@khybersial6171]

love and regards from Afghanistan

[@Shoaib_Khan9272]

Luckily ...I already have write Loadscript for practicing 😅 even before you asked for

[@hamudkhan869]

TOP CLASS

[@priyanshutyagi_02001]

Thankyou harry bhai❤

[@MidnightToons]

Harry sir 1 he video me 6 bar add a gye pareshan ho gye, please solve the issue!

[@mirishfaqhussain6168]

Wow awsome sir

[@Nipun_Mudgal]

King 👑👑

[@tejaswavhal2626]

Nicely explained 😊

[@gaurimandot5788]

Sirf catch method "uncaught error " deta hai HARRY BHAI .

[@ManjotSingh-sf5qn]

Arrey 2-3 baar videos dekhi pad rahi ha iss chapter ki 🤌😂

[@subratasadhukhan2161]

मज़ा आ रहा है

[@rajgaming6733]

Itni achi explanation aapne sigma course mei nhi di toh yaha se smjh rha hu😢

[@babaop7066]

Sigma code kis liye ha?plz bata do

[@rajgaming6733]

@@babaop7066 full stack web development ke liye

[@lubnakhan2657]

So hard Harry BHI

[@Avert-Technology.]

sir aapne achha kiya

[@adityanair1001]

Thanks Harry bhai ❤️

[@rahul4142]

The GOAT .

[@adkathait7569]

Q&A plz

[@itxsaadgaming7902]

[@amt.7rambo670]

HARRY BHAI ONLY MISSING PLAYLIST ON YOUR CHANNEL IS MYSQL PLS MAKE A COURSE FOR IT

[@AnilYadav-qn3ch]

// confirm has taken for only task example. let p1 = new Promise((resolve, reject) => { let check = confirm("do you want to confirm"); setTimeout(() => { if (check) { resolve(); } else { reject(new Error("some error")); } }, 4000); }); p1.then(() => { document.write("your task has sucesfully completed"); }).catch((error) => { document.write("facing some problem"); }); harry bhai check this

[@vortexdeo4545]

Yahaan resolve aur reject promise ke andar manually likhe rhe hein, aur then aur catch bhi, but ye resolve hua toh then karen aur reject hua toh catch karen ye kaese decide hoga. Would it be then ke aage catch or what

[@clashingtv2527]

It's very similar to try expect and finally in python or say error handling

[@SSaurabh2013]

harry bhai!!!!!!! Please make videos on salesforce too

[@dksingh9771]

thank you harry bhai

[@jaydipbhutaiya]

Its looklike threading and try catxh block of java...

[@sahilarora6768]

Bhaiya yr aap ne jaise ye javascript ki series alag alag krkr video banaya hai waise hi react.js ki bhi banana

[@jetsetsidd2369]

Thanks Harry bhai...ap please notes update Kar do gdrive mein..🙏

[@abdullahfrontend]

Sir, You should make a Video on Creating you own css Framework

[@vansh1190]

Day 55 #100DaysOfCode with CODEWITHHARRY, JavaScript, today we learn more about promises, .then() and .catch() the fact is that mine CodeFormatter is also not working HARRYBHAI😅😅

[@munny90]

that line "aapke padosi ne nhi baniye mere tauji ne nahi baniye" . harry bhai dil jeet leya apne😄😄

[@anju7334]

Brother please make videos on maths also.

[@AdnanAnsari-h6i]

Nice

[@yogitamodi]

how we will know that where to use resolve and where to use reject , and if we are using (reject callback function) then why we are performing that task in promise. and if we are using (resolve callback function) then, do we have to use both then and catch method

[@ganeshparjapt1731]

thanks harry bhaii

[@bagar_jelly_halqa]

Harry bhai... Waiting for the tutorail of linux

[@HarshSri_2001]

allo parntha bhok lg gyi harry bhai...😅

[@oqant0424]

lecture 55 done (15.11.22)

[@codingwithsatyam]

Best video

[@akshatchauhan6056]

i have a doubt : how js can execute two promise in parallel if it does not support multithreading ?

[@umarjanbhat3819]

it uses web workers.

[@shivamkumar-m8o6c]

reject ka matlab mujhse behtar kon jaan sakta hai🥲🥲

[@undefinedgamer1537]

just like multithreading in python

[@NipunRawat08]

what is ".then" used for.. uske bina bhi to result sahi araha tha!

[@s_ridey_0001]

Tnx sir

[@adityapundir6529]

Bro, you said that you'll make a video on the submissions of Windows 11 UI made in HTML in your video. Please consider it.

[@parasarya72]

Pehle se h bhai, check kro

[@pankajsuryavanshi8332]

Start Redux series..

[@ramjimishra5511]

I love❤ you sir🥰😍

[@aliamir2473]

Plz make typescript course

[@-KundanYadav]

👍👍👍👍

[@vortexdeo4545]

15:11 ye toh error handing without catch inside then itself, wo bhi wthout then me first argument null diye hue Ye sab Projects ke api end points aur DB query me bahot use karte hein but wahaan samjh nhi ata