Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | 6x 46x 46x 46x 46x 46x 130x 60x 60x 70x 70x 70x 65x 65x 65x 65x 46x 9x 9x 37x 65x 6x | const promiseLimit = async <T>(
n: number,
list: Array<() => Promise<T>>,
): Promise<T[]> => {
const results: T[] = new Array(list.length);
let nextIndex = 0;
let active = 0;
return new Promise<T[]>((resolve, reject) => {
const runNext = () => {
if (nextIndex >= list.length) {
if (active === 0) resolve(results);
return;
}
const current = nextIndex++;
active++;
list[current]()
.then((value) => {
results[current] = value;
active--;
runNext();
if (active === 0 && nextIndex >= list.length) resolve(results);
})
.catch(reject);
};
if (list.length === 0) {
resolve(results);
return;
}
for (let i = 0; i < n && i < list.length; i++) {
runNext();
}
});
};
export default promiseLimit;
|