Example of usage Promise.reject

Promise.reject.js

var promiseImmediate = Promise.reject('Immediate value');
promiseImmediate.then(
  result => console.log('promiseImmediate success:', result), 
  error => console.log('promiseImmediate fail:', error)
); // promiseImmediate fail: Immediate value

promiseImmediate.catch(error => console.log('promiseImmediate catch:', error));

var resolver = {};
var promise = new Promise((resolve, reject) => { resolver.reject = reject; });

var promiseDefferred = Promise.reject(promise);
promiseDefferred.then(
  result => console.log('promiseDefferred:', result),
  error => console.log('promiseDefferred fail:', error)
); // promiseDefferred fail: `Promise { state: "pending" }` 

promiseDefferred.catch(error => console.log('promiseDefferred catch:', error)); // promiseDefferred catch: `Promise { state: "pending" }` 
resolver.reject('Defferred value');