How It Works Pricing 🔥Interactive Engineering Learning 🤩 Free Career Advice About Contact

Like what you see? Sign up for a free account to keep your skills up-to-date!

Learn ECMAScript 6+ Basics II

🕓 Last updated today

Knowledge Check

Take this customized & interactive quiz to test your knowledge on ECMAScript 6+ Basics II, then check out the learning resources below.

Question 1 of 4

You have an object called userInfo which contains keys called name and birthdate. How do you destructure the name into the variable firstName?

const { name: { firstName } } = userInfo
const { birthdate, ...firstName } = userInfo
const { name, firstName } = userInfo
const { name: firstName } = userInfo

Core Learning

The fastest way to learn ECMAScript 6+ Basics II is simply to study these exact resources. Focus on the 👀 to learn extra quickly and save time!

Array and Object Destructuring

👀 2 Things to Focus On

Pay special attention to using new variables names and default values
Be careful with nested destructuring when the value of the object is not consistent!

Rest and Spread Operators

👀 2 Things to Focus On

Use on both objects and arrays.
Much more elegant than using Object.assign()

Tricks to Combine Destructuring and Rest/Spread

👀 1 Thing to Focus On

Combine them together for maximum efficiency

Async/Await

👀 1 Thing to Focus On

Replace those gnarly Promise chains with elegant async/await code

SkillMagic

Learn

🌲 Skill Tree: Web Frontend

🐛 5 Most Common Debugging Mistakes

JavaScript Basics I

TypeScript Basics

Introduction to Databases

Magic Quiz