Tips for associating JSON data with a specific class

Question

Tips for associating JSON data with a specific class

I have utilized Babel to create an ES6 class and now I am looking for a way to map JSON data from a server to this ES6 class.
Is there a commonly used method to accomplish this task?

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
//should I set the data one by one?

javascript ecmascript-6 babeljs

Answer 1

Answer №1

To incorporate the JSON object into this, I would utilize Object.assign in the following manner:

class Person {
  name;
  age;
  gender;

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

var info = JSON.parse(request.responseText);
new Person(info);

Answer 2

To incorporate the JSON object into this, I would utilize Object.assign in the following manner:

class Person {
  name;
  age;
  gender;

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

var info = JSON.parse(request.responseText);
new Person(info);

Answer 3

Answer №2

If you're looking to effortlessly map all JSON data to a class, consider utilizing the npm package https://www.npmjs.com/package/class-converter. This handy tool simplifies the process, as demonstrated below:

import { property, toClass } from 'class-convert';

class PersonModel {
  @property('i')
  id: number;

  @property()
  name: string;
}

const personData = {
  i: 1234,
  name: 'John Doe',
};

// Utilize the toClass method to convert plain objects to a specific class
const personModel = toClass(personData, PersonModel);
// The converted class will resemble:
{
  id: 1234,
  name: 'John Doe',
}

Answer 4

If you're looking to effortlessly map all JSON data to a class, consider utilizing the npm package https://www.npmjs.com/package/class-converter. This handy tool simplifies the process, as demonstrated below:

import { property, toClass } from 'class-convert';

class PersonModel {
  @property('i')
  id: number;

  @property()
  name: string;
}

const personData = {
  i: 1234,
  name: 'John Doe',
};

// Utilize the toClass method to convert plain objects to a specific class
const personModel = toClass(personData, PersonModel);
// The converted class will resemble:
{
  id: 1234,
  name: 'John Doe',
}

Tips for associating JSON data with a specific class

Answer №1

Answer №2

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