Assign full array to destructuring variable-CodePudding

In Clojure destructuring it's possible to also have a binding for the full array using :as, is something similar possible in Javascript?

For example,

const queue = [[1, 2]];
const [x, y :as pos] = queue.shift();

where x would be 1, y would be 2 and pos would be [1, 2]?

or is an extra in-between step necessary, like

const queue = [[1, 2]];
const pos = queue.shift();
const [x, y] = pos;

CodePudding user response：

You can't get the parent and nested properties at the same time during destructuring.

I'd do it separately for readability

const queue = [ [1, 2] ],
      pos = queue.shift(),
      [x, y] = pos;

BUT, it is possible to do it in single line. If you destructure the array like an object. Get the 0 property to a variable and destructure the nested array

const queue = [ [1, 2] ];

const { 0: pos, 0: [x, y] } = queue

console.log(x, y)
console.log(pos)