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JavaScript and ES6 Challenges - Do you know JavaScript? (Udemy.com)

Solve different JavaScript challenges yourself. Destructuring, hoisting, , IIFEs, closures, classes, let and much more

Created by: Bogdan Stashchuk

Last updated March 2026

How it compares

Against the other 239 rated Udemy courses in JavaScript on CourseDuck:

  • Rating4.6 out of 5higher than 70% of them
  • Reviews494#112 of 240 by number of reviews
  • Length1.9 hoursshorter than 83% of them
  • Last updatedMarch 2026more recently than 90% of them

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Quality Score

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Overall Score : 92 / 100

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Course Description

In this course you will get JavaScript challenges that you will need to solve.Each challenge consists of the task and solution. In some cases you will be asked to fix existing code, in some cases you will need to write some additionalA code. I will explain each line of the solution and you will deeply understand what happens behind the scenes.Topics of the challenges areA following:- Destructuring- Array helper methods- Variables hoisting- Let, Var and Const- Rest and Spread Operators- Ternary Operator- Default parameters- Closures- IIFE (Immediately Invoked Function Expressions)- ClassesAt the beginning of the course you will get source files for all challenges. They include start and finish states for each challenge.You need to begin with "start"A folderA for each challenge.Who this course is for:Beginner and mid-level JavaScript software developers

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Instructor Details

Bogdan Stashchuk

Experienced instructor with great practical background.

I teach complex stuff in easy step-by-step manner.

All my courses include practical exercises which allow you to follow me from the start of any course till the end. You will perform all tasks the same way I will do in my video lectures. Also you will get a lot of challenges to solve yourself. Of course we will discuss solution of each challenge together.

All you need is to have Mac or PC with installed software as written in each course requirements.

See you on my courses!

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Reviews

4.6

494 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Noel Santiago Guillen Zambrano on 6/24/2019

buenas presentacion del profesor

By Torab Ahamed on 6/11/2019

Amazing course.

By Tushar Sharma on 6/10/2019

Great experience

By Nitin Gupta on 6/6/2019

Challenges was good.

By Rasha Almomani on 6/2/2019

amazing

By Harihara Krishnan on 6/1/2019

Great strategy of teaching

By Dalibor Kozar on 5/31/2019

Good course that i completed in 2 days was a good lesson....

By Alex Marin on 5/26/2019

I love it so far. Will come back with more feedback later.

By Maximilian Luca on 5/26/2019

Yep. I like him! He has a very good way to explain everything and also has a funny accent\n`Juice your destiny!'

By Lance Sparks on 5/24/2019

great information, challenges are a bit too easy

By Amit on 5/21/2019

Not really, it could be better. as i'm a beginer i need basic knowledge but the trainer is teaching me like i have prior knowledge....could be better

By Chingun Erdene-Ochir on 5/19/2019

Could be better with communication

Showing 12 of 85 reviews