CODEWITHSUNDEEP
javascriptclassobject
eminfedar
eminfedar

Reputation: 668

JavaScript: How to copy all properties of Object to a Class variables?

I want to transfer object's properties to a class' variables. For example:

const obj = {
    a: 1,
    b: 'hey',
}

class TestClass {
    constructor(parentObject) {

        // I need: this = parentObject, this.a must refers to parentObject.a, this.b = parentObject.b ...
        ...

    }
}

const aClassObj = new TestClass(obj);
console.log(aClassObj.a); // should return 1

I don't want to make them equal in every line for example:

this.a = parentObject.a
this.b = parentObject.b

Whatever in parentObject must be in this.

Thanks!

Upvotes: 2

Views: 1014

Answers (1)

MH2K9
MH2K9

Reputation: 12039

You can merge the object with the this reference using Object.assign() 

const obj = {a: 1,b: 'hey'}

class TestClass {
    constructor(parentObject) {
        Object.assign(this, obj)
    }
}

const aClassObj = new TestClass(obj);
console.log(aClassObj.a);

Upvotes: 4

Related Questions