/
app.js
156 lines (134 loc) · 3.77 KB
/
app.js
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// const arr = [1, 2, 3, 4];
// let index = 0;
// function next() {
// return arr[index++];
// }
// console.log(next());
// console.log(next());
// const channel = 'Stack';
// const channelIterator = channel[Symbol.iterator]();
// console.log(channelIterator.next());
// console.log(channelIterator.next());
// console.log(channelIterator.next());
// console.log(channelIterator.next());
// console.log(channelIterator.next());
// console.log(channelIterator.next());
// console.log(channelIterator.next());
// for (let v of channel) {
// console.log(v);
// }
// while (true) {
// const data = channelIterator.next();
// if (data.done) {
// break;
// }
// console.log(data.value);
// }
// const range = {
// start: 0,
// stop: 100,
// step: 5,
// };
// range[Symbol.iterator] = function () {
// let current = this.start;
// const stop = this.stop;
// const step = this.step;
// return {
// next() {
// const o = {
// value: current,
// done: current > stop,
// };
// current += step;
// return o;
// },
// };
// };
// for (let v of range) {
// console.log(v);
// }
// const rangeIterator = range[Symbol.iterator]();
// console.log(rangeIterator.next());
// console.log(rangeIterator.next());
// console.log(rangeIterator.next());
// function* myGenerator() {
// yield 1;
// yield 2;
// yield 3;
// }
// const iterator = myGenerator();
// console.log(iterator.next());
// console.log(iterator.next());
// console.log(iterator.next());
// console.log(iterator.next());
// Generator always returns iterator
// function* range(start = 0, stop = 100, step = 5) {
// for (let i = start; i <= stop; i += step) {
// yield i;
// }
// }
// const rangeIt = range(1, 10, 3);
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// console.log(rangeIt.next());
// for (let v of range()) {
// console.log(v);
// }
// function* generateId() {
// let index = 1;
// while (true) {
// yield index++;
// }
// }
// const generateUserId = generateId();
// const generateProductId = generateId();
// console.log('User', generateUserId.next().value);
// console.log('User', generateUserId.next().value);
// console.log('User', generateUserId.next().value);
// console.log('Product', generateProductId.next().value);
// console.log('Product', generateProductId.next().value);
// console.log('Product', generateProductId.next().value);
// console.log('Product', generateProductId.next().value);
// console.log('Product', generateProductId.next().value);
// console.log('Product', generateProductId.next().value);
const axios = require('axios').default;
async function getUsers() {
const url = 'https://jsonplaceholder.typicode.com/users';
const { data: users } = await axios.get(url);
return users.map((user) =>
axios.get(`https://jsonplaceholder.typicode.com/posts?userId=${user.id}`)
);
}
// async function* getPostsByUser(users) {
// const url = 'https://jsonplaceholder.typicode.com/posts';
// for (let i = 0; i < users.length; i++) {
// const { data: posts } = await axios.get(`${url}?userId=${users[i].id}`);
// yield posts;
// }
// }
// getUsers()
// .then(async (users) => {
// // const userIterator = await getPostsByUser(users);
// // await userIterator.next();
// // await userIterator.next();
// // console.log((await userIterator.next()).value);
// // for await (let v of getPostsByUser(users)) {
// // console.log(v.map((d) => d.title));
// // }
// console.log(users);
// })
// .catch((e) => {
// console.log(e);
// });
(async () => {
const users = await getUsers();
for await (let v of users) {
console.log(v.data.map((post) => post.title));
}
})();