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July 23, 2022 02:16 pm GMT

Storing Classes and Objects

Class

First thing first, classes require to be registered before used in Nucleoid:

class Order {  constructor(item, qty) {    this.item = item;    this.qty = qty;  }}nucleoid.register(Order);

Objects

The same thing for objects, once initiated and assigned to the var variable as well as it stored.

app.post("/orders", () => {  var order = new Order("ITEM-123", 3);  return order;});

and it can retrieve by its var variable as mentioned earlier.

app.get("/orders", () => {  return order;});
{  "id": "order0",  "item": "ITEM-123",  "qty": 1}

if object initiated without assigning var variable, the runtime automatically assign var variable along with id

app.post("/test", () => new Order("ITEM-123", 3));
{  "id": "order0",  "item": "ITEM-123",  "qty": 1}

id of object is always the same to its global var so that either can be used to retrieve the object like
Order["order0"] and order0.

if object assigned to either let or const, the runtime will create var variable the same as its id

app.post("/orders", () => {  const order = new Order("ITEM-123", 3);  return order;});
{  "id": "order1",  "item": "ITEM-123",  "qty": 1}

Now, it can use its id as var in order to retrieve the object

app.get("/test", () => order1);

Original Link: https://dev.to/nucleoid/storing-classes-and-objects-4inc

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