How to concurrency promise limit to specific number? - node.js

Question

In my code, the executing promise is 1 by 1. its not concurrency concept. how to convert to concurrency with limit 8 promise. so its like a create a pool with limit 8 promise. then, push and read promise output realtime.
example.
if in 1 second it can done 2 promise job, then it will output 2 promise. and fill again the pool with 2 new promise job.
i dont want it wait 8 promise job done in sametime, and start to fill pool with 8 job again.
import fetch from 'node-fetch';
import { load } from 'cheerio';
(async () => {
const response = await fetch('https://hentairead.com/page/1/');
const $ = load(await response.text());
const totalPage = $('span.pages')
.text()
.match(/\d{3,}/g)
.toString();
for(let page = 1; page <= totalPage; page++)
{
const response = await fetch(`https://hentairead.com/page/${page}/`);
const $ = load(await response.text());
$('div.item-thumb.c-image-hover > a').each((index, item) => {
console.log(item.attribs.title);
});
}
})();

Answer 1

import fetch from 'node-fetch';
import { load } from 'cheerio';
import {CPromise} from "c-promise2";
(async () => {
const response = await fetch('https://hentairead.com/page/1/');
const $ = load(await response.text());
const totalPage = $('span.pages')
.text()
.match(/\d{3,}/g)
.toString();
const fetchPage= async (page)=>{
const response = await fetch(`https://hentairead.com/page/${page}/`);
const $ = load(await response.text());
$('div.item-thumb.c-image-hover > a').each((index, item) => {
console.log(item.attribs.title);
});
}
await CPromise.all(function*(){
for(let page = 1; page <= totalPage; page++){
yield fetchPage(page);
}
}, {concurrency: 8});
})();