Synchronous promise resolver

Synchronous_promise_resolver.js

const pr = (shouldResolve = true, time = 5000) => {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      console.log(`this promise is ${shouldResolve}`);
      if (shouldResolve) {
        resolve();
      } else {
        reject(new Error('failed'));
      }
    }, time);
  });
};

const prs = [() => pr(true), () => pr(false, 10000), () => pr(true)];
function synchronousPromiseResolver(promises) {
  const copyOfPromises = [...promises];
  const promisesAnswer = [];

  return new Promise((resolve, reject) => {
    const prResolver = function(promise) {
      if (!promises.length || !promise) {
        return resolve(promisesAnswer);
      }
      promise()
        .then(data => {
          promisesAnswer.push(data);
          prResolver(copyOfPromises.shift());
        })
        .catch(err => {
          reject(err);
        });
    };
    prResolver(copyOfPromises.shift());
  });
}
synchronousPromiseResolver(prs);