how to clone an object in javascript

                                    const first = {'name': 'alka', 'age': 21} 
const another = Object.assign({}, first);

                                    let clone = Object.create(Object.getPrototypeOf(obj), Object.getOwnPropertyDescriptors(obj));

                                    var sheep={&quot;height&quot;:20,&quot;name&quot;:&quot;Melvin&quot;};<br/>var clonedSheep=JSON.parse(JSON.stringify(sheep));<br/><br/>//note: cloning like this will not work with some complex objects such as:  Date(), undefined, Infinity<br/>// For complex objects try: lodash's cloneDeep() method or angularJS angular.copy() method

                                    let clone = Object.assign({}, objToClone);

                                    var x = {myProp: "value"};
var xClone = Object.assign({}, x);

//Obs: nested objects are still copied as reference.