How to map JSON data to a class

问题

I created a ES6 class by Babel and I want to map JSON data which is gotten from a server to the ES6 class.
Is there anything common way to do that?

User.js

export default class User {
  constructor() {
    this.firstName;
    this.lastName;
    this.sex;
  }
}

app.js

import User from "./classes/User";

var data = JSON.parse(req.responseText);
console.log(data.firstname); //Bob
//now...just set data one by one?

回答1:

I would merge the JSON object into this using Object.assign, as follows:

class User {
  firstName;
  lastName;
  sex;

  constructor(data) {
    Object.assign(this, data);
//  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  }
}

var data = JSON.parse(req.responseText);
new User(data);

来源：https://stackoverflow.com/questions/30339675/how-to-map-json-data-to-a-class