3 ms·
let obj = {a:1}, arr = [1], map = new Map().set("a",1); // Iterating over an object keys for (let x of Object.keys(obj)) {...}
by frankenst1 5y ago
let obj = {a:1},
arr = [1],
map = new Map().set("a",1);
// Iterating over an object keys
for (let x of Object.keys(obj)) {...}
// an array
for (let x of arr) {...}
// or a map?
for (let x of map) {...}