JavaScript & TypeScript Exercises

JavaScript

playground_01.js

Topics:

• var/let/const
• nullish coalescing operator (??) and optional chaining operator (?.)
• spread operator
• implicit type coercion

playground_02.js

Topics:

• shallow and deep copies explained in a visual format:

  

• reduce function

• Promises and async/await

TypeScript

• See how TypeScript code gets compiled to JavaScript (see compiled/playground.js)
• Explore some interesting TypeScript properties.