In TypeScript, the <promise void> statement takes on a special significance

Currently, I am diving into the world of typescript but there are a few concepts that still elude me. Some of these include:

1) My confusion lies within this snippet of code: Object = Object.assign

export const htmlElementsMap: Object = Object.assign(
  {},
  homePageElementsMap,
  loginPageElementsMap,
  productDetailPageElementsMap,
  productListPageElementsMap,
  shoppingBagPageElementsMap,
  thankYouPageElementsMap
);

2) Similarly, I'm unsure about this segment:

export const UrlNavigationMap: Object = {
What exactly is an object?

3) The usage of PromiseLike<void> in this function has me puzzled:

performAs(actor: PerformsTasks): PromiseLike<void> {
    return actor.attemptsTo(
      Click.on(homePageElementsMap.lnk_men),
      SearchItemBySku.called()
    );
  }

4) In the line

export class FillShippingAddress implements Task {}
, what does 'implements' signify?

Finally,

5) Can you explain the concept of static and its association with the class name in TypeScript?

export class AddItemsToShoppingBag implements Task{
  static called(gender: string): AddItemsToShoppingBag {
    return new AddItemsToShoppingBag(gender);
  }

Answer №1

  1. I am simply a small part of the code snippet const htmlElementsMap: Object

:Object serves as a type annotation. Here are some insights into type annotations

  1. What exactly is an Object?

It represents the type of standard JavaScript objects : Learn more about Objects here

  1. Deciphering the meaning of PromiseLike<void>:

PromiseLike adheres to the a+ promise spec : Explore promise specifications here

The browser native implementation of Promise exemplifies this concept : Find out more about Promises in JavaScript

<void> signifies a generic type annotation.

  1. Understanding the term 'implements'

'Implements' denotes compliance with the types mentioned in the interface Interface explanations can be found here.

  1. Defining 'static' and its association with the class name

Explanation of static: It refers to a specific member within class structures.

Clarification on assignment to the class name: It should be noted that : AddItemsToShoppingBag is not assigned but acts as a return type annotation, it is not an actual assignment.

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