Master Async JavaScript: What it is and How to Use it

Asynchronous JavaScript is one of the most important topics in web development. It allows you to write code that can run in the background without blocking the main thread. This means you can create faster, smoother and more responsive web apps. In this video, I will teach you the fundamentals of async JavaScript, such as callbacks, promises and async/await. You will learn how to handle asynchronous operations, deal with errors and write clean and readable code. By the end of this video, you will have a solid understanding of async JavaScript and how to use it in your projects.

Instructor in this video: Harsh Sharma

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[harshsharma]

O bhaiya log, please video mein support jaroor dedena, mehnat kr rhe hai, another attempt to make mummy ki wishes poori, Sheryians core team ke logo ki growth ke liye and aap logo ki journey simplify karne ke liye ❤️❤️

[HarshSingh-krci]

[02:36] Introduction to Async JavaScript
[07:34] Synchronous code executes one after the other
[10:05] Understanding the sequence of asynchronous tasks.
[16:39] Asynchronous JavaScript allows for non-blocking code execution.
[19:39] Understanding asynchronous JavaScript
[28:22] Understanding the difference between synchronous and asynchronous code execution.
[33:31] Understanding event loop in JavaScript
[40:09] Understanding the behavior of setTimeout function
[43:20] JavaScript code execution and asynchronous behavior
[48:08] Promises can be in pending, resolved, or rejected states.
[49:53] Understanding the states of a promise
[56:36] Understanding promise creation and resolution process.
[59:01] Understanding the concept of promises and their states
[1:02:32] Understanding promises in async JavaScript
[1:05:04] Using async code and Promise to manage asynchronous JavaScript
[1:13:53] Understand the concept of third party dependencies and parallelism in JavaScript
[1:15:58] Throttling helps decrease the number of scroll event calls.

[mohammedrizwan]

Sir, I haven't seen any teacher like you on YouTube. Whenever I get stuck, your videos come to the rescue, and when I watch them, it feels like I've already learned the topic. You make amazing videos. Please continue this quality. People learn with ease and without stress. Love you, sir, from Pakistan, and thank you.❤❤❤❤❤❤....

[rajafahadali]

your main stack and side stack explaination was awesome❤

[rohitkashyap]

Wow sir...me bahut dino se sab creater ki video watch kari(code with harry love babber or bhi bhaut Udemy course liya learn Vern se js course watch kara simplilern bhi ) ..but sir jaise aapne desi langauge smajaya hai ... salute hai sir dil 🙏🙏🙏🙏🙏🙏❤️❤️❤️🙏🙏
Thank you so much bahut kuch understand hua sir value able content 🙏🙏🙏🙏🙏🙏🙏 salute sir again 🙏🙏🙏🙏🙏🙏🙏🙏
bhaiyo sab support karo sir ko free mai itna aacha content koi nai deta inta acha content bas sab course bana kar dalte dete hai recorded video or na itne aache se bilkul pure Hindi language mai
Thank you so much

[shubhamshrivastav]

Best coach ever I have first time complete all javascript series in a day because the way sir teaches id more like an friend rather than a teacher

[PRIYANKASHARMA-pufj]

I am a 43 years old female working in logistic and accounts, no codding background want to change the field in web development, learning speed is slow, but i found your way of teaching method is easy and relaxable for absolute beginners. ggod job thanks

[hell_robo]

in a simpler term,
whenever the jsre discoveres any synchronous code, it will be executed first and whenever founds an asynchronous code, it will check about the priorities of asynchronous code, like if they are promises then they will be considered as a microtask which haves a higher priority to be executed as first, and the rest asynchronous codes like setTimeout() or setInterval() will be considered as a macrotask which haves least priority to be executed than microtasks, so whenever the microtasks executes, the macrotasks will come to the callstack and then will starts to be executed in synchronized manner!

pls. give a thumbs up for this biggest info in a short paragraph...

[SR-rhhb]

Teaching is never gonna be boring for the teachers like you... I mean it is enjoyable not because you use sl*ngs in between but for the simplistic way you explain and demonstrate all the concepts in which some of us might be having doubts.

[akashraut]

Bahut badhiya bhai. Best explanation on youtube so far. keep going brother.

[palanibhavesh]

Beautiful explained. It's a request to make in-depth videos on each async functions setTimeOut, fetch and more with real world use cases like a mini project. Loved the way you explained.

[Aakash.]

I randomly discovered your channel.
And I found that your JS video which are mind blowing, I'm struggling from Js to understand but your teaching is on next level.
I understand each and every concept of js that you teach without re-watching or taking back the video.

[akashsahu]

Your teaching on YouTube is exceptional! The content you provide is top-notch and incredibly valuable. Your dedication to creating informative and engaging videos is truly commendable. I love how you effortlessly explain complex topics, making them easily understandable for learners of all levels. Your passion for teaching shines through in every video, and it's evident that you genuinely care about your audience's learning experience. Please create videos on React, as your contributions are immensely helpful to learners like me. Thank you for being such an inspiring and influential educator on YouTube!

[ayanchowdhary]

LOVE HOW HE EXPLAINS COMPLICATED TOPICS SO EASY. NO BS SEEDHA POINT.

[Malik-Muhammad-Ali]

boht he level samjaya hai bhai kamal ka. teaching style superb hai boss. love from PAKISTAN♥

[ujjwalssharma]

omg! the way harsh bhaiya is teaching i mean look at the enthusiasm in every examples, every explanation, i don't think that in entire YT teaching channel, anybody had explained the async nature of JS this way. Thank you so much bhaiya iss content k

[VaibhavPrasad]

Congratulations for 200k already brother, just got laid off and preparing for interviews, you're videos are a gem 💎!! Thankyou for everything you do.❤

[abdullahmehar]

then best codding channel and teachers i could find in my 1.5 years learning journey just love and respect for you sir 💚💚

[kiranshinde]

Just a clear understanding ❤😊 great man..
Yes we want dom projects 😉 💯

[rohangausiya]

No.1 way of teaching skill... No one can teach better than you.