error TS7053 when try to get an object with a key-CodePudding

When I try to extract an object from the response I get an error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
No index signature with a parameter of type 'string' was found on type '{}'.

\\ product.service.ts:

  getProducts() {
    return this.http.get(this.url)
      .pipe(
        map(this.listProduct)
      );
  }

  listProduct (prod: object) {

      let products : Product[] = [];

      if ( prod !== null ) {

        Object.keys(prod).forEach( key => {

          let product: Product = prod[key]; // an error appears here
          
          product.id = key;

          products.push(product);

        })
      }
      return products;
  }

maybe the reason is "id?" but that was the only solution that worked

\\ product.modelo.ts:

export class Product {
    id?: string;       
    name!: string;
    quantity!: number;
    description!: string;
}

CodePudding user response：

It is complaining about the type of prod because it doesn't know it. Try this

let product: Product = (<any>prod).key;

CodePudding user response：

        for (let [key, object] of Object.entries(prod)){
          let product: Product = object as Product;
            product.id = key;
            products.push(product)
        }

CodePudding user response：

You should set prod paramert to { [key: string]: Product; } type. You can alson create new type and referece it.

type ProdObjects = {
  [key: string]: Product;
};

function listProduct (prod: ProdObjects) {
...

All other hacks are bad practice