[Promise with resolvers] #promise #helper

getPromiseWithResolvers.js

export function getPromiseWithResolvers() {
  let resolve;
  let reject;

  const promise = new Promise((resolve_, reject_) => {
    resolve = resolve_;
    reject = reject_;
  });

  return { promise, resolve, reject };
}

getPromiseWithResolvers.ts

export function getPromiseWithResolvers() {
  let resolve: (value: unknown) => void;
  let reject: (reason?: any) => void;

  const promise = new Promise((resolve_, reject_) => {
    resolve = resolve_;
    reject = reject_;
  });

  return { promise, resolve: resolve!, reject: reject! };
}