What does the '...rest' stand for in this object destructuring?

This is object rest operator, it creates an object from all properties that weren’t explicitly destructured.

Note: since object rest/spread is still a stage 3 proposal, and requires a babel transform to work.

const obj = { a: 1, b: 2, c: 3};

const { a, ...everythingElse } = obj;

console.log(a);

console.log(everythingElse);

It’s equivalent to array rest operator:

const arr = [1, 2, 3];

const [a, ...rest] = arr;

console.log(a);
console.log(rest);

What does the ‘…rest’ stand for in this object destructuring?