for-of.md

ES6 for/of

The for/of loop uses the iterable protocol to create a loop. Strings, Arrays, TypedArray, Map, Set, NodeList, and custom iterable function hooks can all be used with for/of.

const arr = [1, 2, 3];
for(let number of arr) {
	console.log(number) // 1 2 3
}

To iterate over an object you can use the protocol Object.entries(). This will give arrays of ['key', 'value'] pairs. Unlike for/in this will not iterate through the object prototype

const obj = { a:1, b:2, c:3 };
for (let prop of Object.entries(obj)) {
	console.log(prop); // ['a', 1] ['b', 2] ['c', 3]
}