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Asynchronous JavaScript: Promises, Callbacks, Async Await

Become an expert in Asynchronous JavaScript: Promises, Callbacks, Async Await, Event Loop, etc.
4.6
4.6/5
(1,706 reviews)
7,898 students
Created by

9.7

Classbaze Grade®

10.0

Freshness

9.5

Popularity

9.0

Material

Become an expert in Asynchronous JavaScript: Promises
Platform: Udemy
Video: 3h 0m
Language: English
Next start: On Demand

Best JavaScript classes:

Classbaze Rating

Classbaze Grade®

9.7 / 10

CourseMarks Score® helps students to find the best classes. We aggregate 18 factors, including freshness, student feedback and content diversity.

Freshness

10.0 / 10
This course was last updated on 4/2022.

Course content can become outdated quite quickly. After analysing 71,530 courses, we found that the highest rated courses are updated every year. If a course has not been updated for more than 2 years, you should carefully evaluate the course before enrolling.

Popularity

9.5 / 10
We analyzed factors such as the rating (4.6/5) and the ratio between the number of reviews and the number of students, which is a great signal of student commitment.

New courses are hard to evaluate because there are no or just a few student ratings, but Student Feedback Score helps you find great courses even with fewer reviews.

Material

9.0 / 10
Video Score: 8.0 / 10
The course includes 3h 0m video content. Courses with more videos usually have a higher average rating. We have found that the sweet spot is 16 hours of video, which is long enough to teach a topic comprehensively, but not overwhelming. Courses over 16 hours of video gets the maximum score.
The average video length is 5 hours 11 minutes of 812 JavaScript courses on Udemy.
Detail Score: 9.6 / 10

The top online course contains a detailed description of the course, what you will learn and also a detailed description about the instructor.

Extra Content Score: 9.5 / 10

Tests, exercises, articles and other resources help students to better understand and deepen their understanding of the topic.

This course contains:

2 articles.
0 resource.
0 exercise.
0 test.

In this page

About the course

My main goal is to help you master Asynchronous JavaScript. This course was specifically designed for those who want to improve their skills in Callbacks, Promises, Async Await, and Event Loop. This course was designed to be easy to understand, and therefore there are a lot of visuals in it, especially when we are talking about important concepts. You will also see a lot of coding examples along the way.
We will be talking about 3 main components of Async JavaScript: Callback functions, Promises, and Async Await.
Callbacks in JavaScript are used everywhere. Creating event handlers, making HTTP requests, interacting with the DOM, setting timeouts, reading or writing data to the filesystem, working with databases, etc. I am pretty sure you are already using callbacks in your code, but I am not sure if you know how they actually work… Knowing how things really work will help you write your code faster and avoid weird bugs.
Promises were created as a better alternative to callbacks. They don’t have drawbacks that callbacks have. JavaScript promises are incredibly helpful when you have several asynchronous operations that depend on each other. However, promises are a new concept which you have to learn, and this course will help you with that.
Async Await is a syntactic sugar around Promises introduced in EcmaScript 8. Before that writing asynchronous code in JavaScript was very different from writing ordinary synchronous code. Async await allows you to structure all your code in a similar way, no matter if it’s synchronous or asynchronous.
There is a lot of asynchronous stuff going on in popular JavaScript libraries and frameworks: React, Angular, Vue.js, jQuery, etc. In NodeJS it’s almost impossible to write anything without using asynchronous operations. After watching this course you will be able to read and write asynchronous JavaScript code effectively, and you will definitely understand how it works behind the scenes!
P. S. Made in Ukraine

What can you learn from this course?

✓ Learn fundamental concepts of Asynchronous JavaScript
✓ Everything you need to know about JavaScript Promises
✓ Using callbacks: Pros and Cons, when to use and how to test
✓ Async / Await – the new way of handling asynchronous operations in JavaScript
✓ In-depth understanding of the Event Loop
✓ Learn how JavaScript Engine executes code behind the scenes
✓ Unit Testing of asynchronous functions
✓ No fluff, direct and to the point
✓ Github repository

What you need to start the course?

• Basics of JavaScript

Who is this course is made for?

• Developers with basic JavaScript knowledge
• Those who want to master Asynchronous JavaScript, Callbacks, Promises, Async Await

Are there coupons or discounts for Asynchronous JavaScript: Promises, Callbacks, Async Await ? What is the current price?

The course costs $14.99. And currently there is a 63% discount on the original price of the course, which was $39.99. So you save $25 if you enroll the course now.
The average price is $25.1 of 812 JavaScript courses. So this course is 40% cheaper than the average JavaScript course on Udemy.

Will I be refunded if I'm not satisfied with the Asynchronous JavaScript: Promises, Callbacks, Async Await course?

YES, Asynchronous JavaScript: Promises, Callbacks, Async Await has a 30-day money back guarantee. The 30-day refund policy is designed to allow students to study without risk.

Are there any financial aid for this course?

Currently we could not find a scholarship for the Asynchronous JavaScript: Promises, Callbacks, Async Await course, but there is a $25 discount from the original price ($39.99). So the current price is just $14.99.

Who will teach this course? Can I trust Viktor Pyskunov?

Viktor Pyskunov has created 3 courses that got 5,606 reviews which are generally positive. Viktor Pyskunov has taught 26,676 students and received a 4.6 average review out of 5,606 reviews. Depending on the information available, we think that Viktor Pyskunov is an instructor that you can trust.
Senior Software Developer
My name is Viktor and my goal is to help you understand stuff.
I am a Senior Software Developer from Ukraine specializing in JavaScript and various technologies around it.I have been creating web applications for 15 years.During these years I acquired a lot of expertise in Software Development industry.Now I want to share my knowledge with you.
I design my courses so they are easy to understand and to follow, and I update them regularly in order to keep them up-to-date.
Browse all courses by on Classbaze.

9.7

Classbaze Grade®

10.0

Freshness

9.5

Popularity

9.0

Material

Platform: Udemy
Video: 3h 0m
Language: English
Next start: On Demand

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