promise.reject() no params error always undefined

[huzedong2015]

Demo

function delay(time = 0) {
	return new Promise((reslove, reject) => {
			if (time > 2000) {
				reject();
			} else {
			reslove(time);
		}
	});
};
const [error, data] = await to(delay(2100));
console.log(error, data); // error always undefined

This is just a simple example

Why

There are many UI frameworks. Confirm uses project, and reject does not return parameters

[jxbb]

const [error, data] = await to(this.delay(2100),{err: '...'});

[huzedong2015]

const [错误，数据] =等待（this.delay（2100），{err：'...'}）;

** await-to-js Source code **

export function to<T, U = Error> (
  promise: Promise<T>,
  errorExt?: object
): Promise<[U | null, T | undefined]> {
  return promise
    .then<[null, T]>((data: T) => [null, data])
    .catch<[U, undefined]>((err: U) => {
      if (errorExt) {
        Object.assign(err, errorExt);
      }

      return [err, undefined];
    });
}

export default to;

Error ext is invalid when reject does not return any data.