Copy an Array with the Spread Operator

Nested Destructuring for Objects

Copy an Object with the Spread Operator

Merge Arrays using the Spread Operator

Flatten a Nested Array in JavaScript with Array.prototype.flat

Merge Objects with JavaScript's Spread Operator

For...in Loop vs. For...of Loop

Array.prototype.flatMap from ES2019

Convert an Object to an Array and back again with Object.entries and Object.fromEntries

Safely Access a Property on a JavaScript Object with Optional Chaining

Safely Access a Property on a JavaScript Array with Optional Chaining

ES6 and Beyond

Use these functions in order to flip back and forth between an Object and an Array.

Instructor: [00:01] We start with an object. We can turn that object into an array using object.entries, and pass in our object. To reverse that, we can use object.fromEntries and pass in our array. This results in our original object

Course

ES6 and Beyond

Convert an Object to an Array and back again with Object.entries and Object.fromEntries

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