git.r.bdr.sh - rbdr/forum/blob - src/lib/utils/resolve_after.ts

   1 export type ResolveAfterPromise = {
   2         counter: () => void;
   3         promise: Promise<void>;
   4 };
   5
   6 export const resolveAfter = function (timesUntilResolve: number): ResolveAfterPromise {
   7         let counter = null;
   8         let currentValue = 0;
   9
  10         if (timesUntilResolve <= 0) {
  11                 throw new Error('Resolve after requires a positive integer');
  12         }
  13
  14         const promise: Promise<void> = new Promise((resolvePromise) => {
  15                 counter = () => {
  16                         if (++currentValue === timesUntilResolve) {
  17                                 resolvePromise();
  18                         }
  19                 };
  20         });
  21
  22         return {
  23                 counter,
  24                 promise
  25         };
  26 };