Node - SafeObject

safeobj.js

class SafeObject {
	constructor(mainObject) {
		this.mainObject = mainObject;
		this.configs = {
			get: SafeObject.get.bind(this)
		}
	}
	static get (target, prop) {
		if (prop in target) {
			return target[prop];
		}

		if (prop in this.mainObject && (this.mainObject[prop].constructor === Array || this.mainObject[prop].constructor === Object)) {
			target[prop] = (new SafeObject(this.mainObject[prop])).clone();
		}

		return target[prop] || this.mainObject[prop];
	};
	clone() {
		return new Proxy({}, this.configs);
	};
}

// Example
const a = {c: 1, b: "dkljfsd", d: 13, e: {c: 1, d: {c: 1}}};
const o1 = new SafeObject(a);

const cloneO = o1.clone();
cloneO.c = 2;
cloneO.e.c = 3;
cloneO.e.d.c = 4;
console.log(a);
console.log(cloneO.e.c);
console.log(cloneO.e.d.c);
console.log(cloneO);