ES6 and Beyond - JavaScript Tips and Tricks from ES2015 to ES2020 by Mike Sherov

• Refactor es5 functions to es6 arrow functions
• Use ES6 Sets to Improve Javascript Performance
• Use ES2019 Array.prototype.flat to Flatten Multidimensional Arrays
• Map and Flatten Multidimensional Arrays with ES2019 Array.prototype.flatMap
• Explore ES2019 stable array sorting by example