@sz-sw/object-x

Creates a '''class''' like object:

const {ObjectX, X} = require("@sz-sw/object-x")

let instance = ObjectX.create()

// Adding properties to instance:
X(instance).addProperty.writable.deletable("name", "Bob")
X(instance).addProperty("age", 30)

console.log(instance.name) // Bob
console.log(instance.age) // 30
console.log(instance.nonexisting) // Ooops! Will throw error

delete instance.name
instance.age = 31 // Ooops! Will throw error

Available property modifiers are: enumerable, writable and deletable.

X(instance).seal() will prevent addition of new properties to instance. X(instance).unwrap() will return instance.