all you need to know about js spread operator code example
Example 1: spread operator javascript
obj = {first_name : "Marty",
lovers: ["Jennifer Parker","Baines McFly"]
};
let objClone = { ...obj }; // pass all key:value pairs from an object
console.log(objClone)
// { first_name: "Marty", lovers: ["Jennifer Parker", "Baines McFly"] }
Example 2: spread operator
function sum(x, y, z) {
return x + y + z;
}
const numbers = [1, 2, 3];
console.log(sum(...numbers));
// expected output: 6
console.log(sum.apply(null, numbers));
// expected output: 6