Cloning Non enumerable properties in javascript

Question

I have all non - enumerable properties in object, I want to clone that object.

My problem non-enumerable properties are not getting cloned.

Take below exampl

Answer 1

I have a similar question in How to implement Ruby's extend module in JavaScript.

And because I don't wanna use iterate attach each method to new object, so the final best way I can do is like that, welcome give me any idea and suggestion, thanks.

class Test {

  constructor(name) {

    this.name = name;
  }

  test1(){
    return this.name + "test1"
  }
}

const Other = {
  test2: function(){
    return this.name + "test2"
  },

  test3: function(){
    return this.name + "test3"
  },

  test4: function(){
    return this.name + "test4"
  }

}

var person = new Test("HKE")
Object.assign(person,Other) //this like object.extend(Module) in ruby
console.log(person.test1()) // HKEtest1
console.log(person.test2()) // HKEtest2
console.log(person.test3()) // HKEtest3
console.log(person.test4()) // HKEtest4

var house = new Test("Tsao")
console.log(house.test1())
console.log(house.test2()) // TypeError: house.test2 is not a function
console.log(house.test3()) // TypeError: house.test3 is not a function
console.log(house.test4()) // TypeError: house.test4 is not a function