aherve · December 7, 2016 10:55
diff --git a/promises.js b/promises.js
 function demoPromise (userId) {
  User
    .findById(userId)
    .then(doSomethingAsync) // doSomething will receive `user` as argument if everything goes smoothly
    .catch(dealWithIt) // here we catch both the `findById` and `doSomethingAsync` errors at once
 }
	function demoPromise (userId) {
	User
	.findById(userId)
	.then(doSomethingAsync) // doSomething will receive `user` as argument if everything goes smoothly
	.catch(dealWithIt) // here we catch both the `findById` and `doSomethingAsync` errors at once
	}
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