cloneObject.js

=== Deep cloning and making sure only plain objects in string format are copied =====
            
 let objectCopy = JSON.parse(JSON.stringify(object))


=====================================
const cloneObject = function (object) {
            var copy = {};
            var keys = Object.keys(object);
            for (var i = 0; i < keys.length; i++) {
                var key = keys[i];
                var value = object[key];
                copy[key] = value;
            }
            return copy;
        };

===============================================

function clone(src) {
	function mixin(dest, source, copyFunc) {
		var name, s, i, empty = {};
		for (name in source) {
			// the (!(name in empty) || empty[name] !== s) condition avoids copying properties in "source"
			// inherited from Object.prototype.	 For example, if dest has a custom toString() method,
			// don't overwrite it with the toString() method that source inherited from Object.prototype
			s = source[name];
			if (!(name in dest) || (dest[name] !== s && (!(name in empty) || empty[name] !== s))) {
				dest[name] = copyFunc ? copyFunc(s) : s;
			}
		}
		return dest;
	}

	if (!src || typeof src != "object" || Object.prototype.toString.call(src) === "[object Function]") {
		// null, undefined, any non-object, or function
		return src; // anything
	}
	if (src.nodeType && "cloneNode" in src) {
		// DOM Node
		return src.cloneNode(true); // Node
	}
	if (src instanceof Date) {
		// Date
		return new Date(src.getTime()); // Date
	}
	if (src instanceof RegExp) {
		// RegExp
		return new RegExp(src); // RegExp
	}
	var r, i, l;
	if (src instanceof Array) {
		// array
		r = [];
		for (i = 0, l = src.length; i < l; ++i) {
			if (i in src) {
				r.push(clone(src[i]));
			}
		}
		// we don't clone functions for performance reasons
		//		}else if(d.isFunction(src)){
		//			// function
		//			r = function(){ return src.apply(this, arguments); };
	} else {
		// generic objects
		r = src.constructor ? new src.constructor() : {};
	}
	return mixin(r, src, clone);

}