CoffeeScript map object to class instance

Question

Is there any way to map object received from server as a JSON to class instance in CoffeeScript?

I have a lot of cases where my JSON is:

{
  id:   '123'
  name: 'wojtek'
  age:  24
}

and my coffee class is:

class Person
    constructor: (id, name, age) ->

How to directly map JSON to class instance without assigning each property separately?

Leonid Beschastny · Accepted Answer · 2014-07-16 20:51:35Z

1

I would suggest rewriting your constructor to accept a single object, e.g.:

class Person
  constructor: (@props) ->

or

class Person
  constructor: ({@id, @name, @age}) ->

After that you'll be able to map your JSON to class instance simply by passing it to the constructor:

person = new Person data

answered Jul 16, 2014 at 13:15

Leonid Beschastny

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1 Comment

OMG, that's.. awesome!