Develop a data structure that resembles a map

Question

Develop a data structure that resembles a map

I am currently working with a product model that looks like this:

export class Product {
    id: number;
    name: string;
    price: number;
    url: string;
    description: string;

    constructor() {
        this.id = 1;
        this.name = '';
        this.price = 0.0;
        this.url = '';
        this.description = '';
    }
}

My goal is to create a map similar to a data structure where I can use the Product id as a key and retrieve a structure containing the product itself along with its quantity.

In Java, this would be achieved using:

Map<Integer, Pair<Product, Integer>> = new HashMap<>();

Now, my question is how can I implement the same functionality using TypeScript?

javascript typescript

Answer 1

Answer №1

To create a ProductMap, utilize the following syntax:

type Inventory = Record<number, {item: Item, count: number}>;

Answer 2

To create a ProductMap, utilize the following syntax:

type Inventory = Record<number, {item: Item, count: number}>;

Answer 3

Answer №2

What do you think of this code snippet?

interface ProductMap {
  [key: number]: { product: string, quantity: number };
}

const myProducts: ProductMap = {};

// alternatively
const products: ProductMap = {};

Answer 4

What do you think of this code snippet?

interface ProductMap {
  [key: number]: { product: string, quantity: number };
}

const myProducts: ProductMap = {};

// alternatively
const products: ProductMap = {};

Answer 5

Answer №3

To design a personalized dictionary, use the following approach:

interface CustomMap<T> {
    [Identifier: number]: Pair<T,number>;
}

interface Pair<T, Y> {
    identifier: T;
    data: Y;
}

var myData: CustomMap<Object> = {...};

Answer 6

To design a personalized dictionary, use the following approach:

interface CustomMap<T> {
    [Identifier: number]: Pair<T,number>;
}

interface Pair<T, Y> {
    identifier: T;
    data: Y;
}

var myData: CustomMap<Object> = {...};

Develop a data structure that resembles a map

Answer №1

Answer №2

Answer №3

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