snugobject is a mutable JavaScript object with an immutable hidden class.

Works in the browser. No runtime dependencies. Drop-in* replacement to objects. Get more out of your JS engine.

npm i gobj

Or import directly from a CDN:

import { Obj } from "https://cdn.jsdelivr.net/npm/gobj/+esm";

The Obj class creates a mutable JavaScript object with an immutable hidden class, powered by a Map and a Proxy.

new Obj(data);

• data (object, optional): The initial data to populate the object with.

The constructor may throw:

• TypeError: If data is null.

import { Obj } from "gobj";

const obj = new Obj({
  name: "John Doe",
  age: 30,
});

console.log(obj.name); // Output: "John Doe"
console.log(obj.age); // Output: 30

obj.email = "[email protected]";
console.log(obj.email); // Output: "[email protected]"

delete obj.age; // Output: true
console.log(obj.age); // Output: undefined

console.log(Object.keys(obj)); // Output: ["name", "email"]
console.log(JSON.stringify(obj)); // Output: '{"name":"John Doe","email":"john@example.com"}'

Obj supports all standard object operations, including property access, modification, deletion, and iteration.