Implement paginated data fetcher async iterator

Hard

You're building a paginated data fetcher that needs to work with for-await-of loops. What's the correct implementation of the missing methods to make this code work?

Choose an option below

async *[Symbol.asyncIterator]() {
  while (this.hasMore) {
    const response = await fetch(
      `${this.baseUrl}?page=${++this.currentPage}&amp;limit=${this.itemsPerPage}`
    );
    const data = await response.json();
    this.hasMore = data.length === this.itemsPerPage;
    yield data;
  }
}

[Symbol.iterator]() {
  return {
    next: async () => {
      const response = await fetch(
        `${this.baseUrl}?page=${++this.currentPage}&amp;limit=${this.itemsPerPage}`
      );
      const data = await response.json();
      return { value: data, done: false };
    }
  };
}

async iterator() {
  while (this.hasMore) {
    const response = await fetch(
      `${this.baseUrl}?page=${++this.currentPage}&amp;limit=${this.itemsPerPage}`
    );
    const data = await response.json();
    this.hasMore = data.length === this.itemsPerPage;
    yield data;
  }
}

[Symbol.asyncIterator]: async function*() {
  while (true) {
    const response = await fetch(
      `${this.baseUrl}?page=${++this.currentPage}&amp;limit=${this.itemsPerPage}`
    );
    const data = await response.json();
    yield data;
  }
}

JavascriptAsyncAsync iteratorsGeneratorsPaginationFetch

1class PaginatedFetcher {
constructor(baseUrl, itemsPerPage = 10) {
  this.baseUrl = baseUrl;
  this.itemsPerPage = itemsPerPage;
  this.currentPage = 0;
  this.hasMore = true;
}
8
// Missing implementation
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14}
15
16// Usage:
17async function fetchAllUsers() {
const fetcher = new PaginatedFetcher('/api/users', 25);
const users = [];

for await (const page of fetcher) {
  users.push(...page);
}

return users;
26}

You're building a paginated data fetcher that needs to work with for-await-of loops. What's the correct implementation of the missing methods to make this code work?

Hint