buebird inspired Promise.props using native Promise.all()

index.js

Promise.props = function (props) {
  return Promise.all(Object.keys(props).map(function (key) {
    // ok with val, func, prom?
    return Promise.resolve(props[key]).then(function (res) {
      var one = {};
      one[key] = res;
      return one;
  });
}))
  .then(function (arr) {
    return arr.reduce(function (memo, oneRes) {
    var key = Object.keys(oneRes)[0];
    memo[key] = oneRes[key];
    return memo;
  }, {});
 });
};

Promise.props without bluebird.md

Usage

Promise.props({ a: 1, b: Promise.resolve(14) }).then(function (a) {
    console.log('resolved:::', a);
});
/// resolved::: { a: 1, b: 14 }

Promise.props({ a: 1, b: Promise.reject(14) }).catch(function (err) {
    console.log('rejected:::', err);
});
/// rejected::: 14

With modern ES is could be just

Promise.props = async obj =>
  Object.assign({}, ...(await Promise.all(
    Object.entries(obj).map(async ([key, value]) => ({[key]: await value}))
  )))

With modern ES is could be just

Promise.props = async obj =>
  Object.assign({}, ...(await Promise.all(
    Object.entries(obj).map(async ([key, value]) => ({[key]: await value}))
  )))

nice