Discussion on: JavaScript object destructuring usages you must know

[Thinh Nguyen]

Since it is ..., it's not sread operator.

In Object Destructuring, these three dots is rest propertises,

Rest in Object Destructuring
The Rest/Spread Properties for ECMAScript proposal (stage 4) adds the rest syntax to destructuring. Rest properties collect the remaining own enumerable property keys that are not already picked off by the destructuring pattern.

let {a, b, ...rest} = {a: 10, b: 20, c: 30, d: 40}
a; // 10
b; // 20
rest; // { c: 30, d: 40 }