javascript spreaders 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: javascript spread operator

function myFunction(v, w, x, y, z) { }
let args = [0, 1];
myFunction(-1, ...args, 2, ...[3]);