CODEWITHSUNDEEP
jsonangulartypescriptgetter-setterstringify
Saulo Souza
Saulo Souza

Reputation: 53

Angular's Json.stringify with property problems

I'm trying to stringify objects in Typescript that was implemented usign private properties like this

export class Foo {
   private _property1:string;
   private _property2:string;
   private _property3:string;

   get property1(): string {
        return this._property1;
   }
   set property1(value: string) {
        this._property1 = value;
   }
   get property2(): string {
        return this._property2;
   }
   set property2(value: string) {
        this._property2 = value;
   }
   get property3(): string {
        return this._property3;
   }
   set property3(value: string) {
        this._property3 = value;
   }


}

But when i use JSON.stringfy(), the private properties are read and does'nt go through the get and set methods.

Expected:

{
  "property1": "",
  "property2": "",
  "property3": "",

}

Received:

{
  "_property1": "",
  "_property2": "",
  "_property3": "",

}

It is noticed that the property is underlined, but should not, Json should come with the name that was implemented in the getters and setters and not in private properties

Upvotes: 1

Views: 718

Answers (1)

Poul Kruijt
Poul Kruijt

Reputation: 71901

JSON.stringify only looks at object fields, not at methods or properties (getters/setters).

If undefined, a function, or a symbol is encountered during conversion it is either omitted (when it is found in an object)

...

A getter or setter is defined as a function, and will therefore be ignored in the conversion. Only the private fields of the object will find their way in the JSON. And they will only be there, if they are actually initialised.

Upvotes: 1

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