How do I initialize a TypeScript object with a JSON object

Question

I receive a JSON object from an AJAX call to a REST server. This object has property names that match my TypeScript class (this is a follow-on to this question).

Wha

Answer 1

For simple objects, I like this method:

class Person {
  constructor(
    public id: String, 
    public name: String, 
    public title: String) {};

  static deserialize(input:any): Person {
    return new Person(input.id, input.name, input.title);
  }
}

var person = Person.deserialize({id: 'P123', name: 'Bob', title: 'Mr'});

Leveraging the ability to define properties in the constructor lets it be concise.

This gets you a typed object (vs all the answers that use Object.assign or some variant, which give you an Object) and doesn't require external libraries or decorators.