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Namchee/solution.js

Created April 28, 2021 06:57
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Serial Promise Resolver - courtesy of Anthony Budianto's tweet https://twitter.com/antonybudianto/status/1387211508296261633
Raw
solution.js
// really quick and dirty way to solve it.
let count = 0;
const promisified = (time) => new Promise(resolve => {
setTimeout(resolve, time);
});
async function timeoutProms(proms, c, time) {
count++;
await promisified(time);
console.log(time);
count--;
serialCon(proms, c);
}
function serialCon(proms, c) {
if (count < c && proms.length) {
timeoutProms(proms, c, proms[0]);
proms.shift();
serialCon(proms, c);
} else {
return;
}
}
const arr = [5000, 1000, 100, 300, 2000];
serialCon(arr, 2);
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