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.