reducer-function-error.js

/* eslint-disable no-console */
const dataPoint = require("../").create();

const throwError = (input, acc, next) => {
  // passing first argument will be
  // handled as an error by the transform
  next(new Error("oh noes!!"));
};

dataPoint.resolve(throwError, "Hello").catch(error => {
  console.assert(error instanceof Error);
  console.log(error.toString()); // 'Error: oh noes!!'
});