Handy modern tools
Three tools that make working with objects and arrays smoother: unpacking values into variables, spreading them into copies, and JSON — the format the whole internet uses to send data.
Destructuring
const trek = { name: "Annapurna Circuit", days: 14, maxHeight: 5416 };
const { name, days } = trek;
console.log(name, days);
const [first, second] = ["gold", "silver", "bronze"];
console.log(first, second);