Extract array elements into variables:
let colors = ["red", "green", "blue"]
let [first, second] = colors
console.log(first) // "red"
console.log(second) // "green"
// Skip elements
let [, , third] = colors
console.log(third) // "blue"
// With rest
let [head, ...tail] = colors
console.log(head) // "red"
console.log(tail) // ["green", "blue"]