Promise Fail Test

fail later (native).js

var failPromise = new Promise(function(accept,reject){
  setTimeout(reject,1000,'fail');
});

// won't see the numbers logged, will skip to the fail
failPromise.then(()=> console.log(1)) .then(()=> console.log(2)) .catch((e)=> console.log(':::%s',e));

recover after fail.js

var failPromise = new Promise(function(accept,reject){
  setTimeout(reject,1000,'fail');
});

// fail but then catch, and then recover
failPromise.then(()=> console.log(1)) .then(()=> console.log(2))
.catch((e)=> console.log(':::%s',e))
// there is a catch* this then() will execute either way!
.then(() => console.log('recovered'))

try.js

var failPromise = new Promise(function(accept,reject){
  setTimeout(reject,10,'fail');
});

failPromise.then(
function win1(){
  return 'win1'
}, function fail1(){
  return 'fail1';
}).then(function win2(data){
  console.log('win2',data);
}, function fail2(data){
  console.log('fail2',data);
})

// => win2 fail1