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JavaScript and ES6 Challenges – Do you know JavaScript? [Video]

Solve different JavaScript challenges yourself—destructuring, hoisting, IIFEs, closures, classes, let, and much more…

In this course, you will get JavaScript challenges that you need to solve. Each challenge consists of the task and solution. In some cases, you will be asked to fix existing code; in other cases, you will need to write some additional code. The instructor will explain each line of the solution and you will deeply understand what happens behind the scenes. Topics of the challenges include the following:

  • Destructuring
  • Array helper methods
  • Variables hoisting
  • Let, var, and const
  • Rest and spread operators
  • The ternary operator
  • Default parameters
  • Closures
  • IIFEs (Immediately Invoked Function Expressions)
  • Classes

At 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” folder for each challenge.

Style and Approach

This course is a great introduction to JavaScript and ES6 challenges. The instructor covers most of the related topics in a short time span to keep you interested till the end. You will perform all the tasks the same way and will get a lot of challenges to solve yourself. We discuss the solution to each challenge together.

What You Will Learn

  • Solve different JavaScript challenges and understand the solution for each challenge
  • Understand ES6 classes, arrow functions, const, and let
  • Use ES6 destructuring of objects and arrays
  • See how JavaScript and ES6 work under the hood
  • Find out how to create a not “shallow” but “true” copy of the array or object
  • Understand what variables hoisting and closures are
  • Understand the purpose of the default function parameters and their difference from the function arguments
  • Discover what IIFEs (Immediately Invoked Function Expressions) are and how to use them appropriately to dispose of internal functions
  • See the difference between rest and spread operators and their appropriate usage
  • Implement template literals instead of traditional strings concatenation
  • Know how to properly iterate objects and arrays
  • Implement array helper methods such as forEach and reduce


Bogdan Stashchuk

Bogdan Stashchuk – Full-stack web developer, MBA, PhD

An experienced instructor with a great, practical background, he teaches complex stuff in an easy step-by-step manner. All of his courses include practical exercises that allow you to follow him from the start of any course until the end.



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