Promises & then/catch

How does error handling work in Promise chains?

promise
  .then(value => {
    throw new Error('Something went wrong');
  })
  .then(value => console.log('Never called'))
  .catch(error => console.error(error));

Each then() must handle its own errors
Errors propagate down until caught
Errors in Promise chains propagate until caught by a catch() handler: 1) Any error thrown in a then() handler becomes a rejection, 2) Rejections skip subsequent then() handlers until a catch() is found, 3) catch() handlers can recover from errors by returning a value, 4) The chain can continue after catch() if needed, 5) Similar to try/catch but for asynchronous operations, 6) Enables centralized error handling for entire chains.
Errors stop the chain immediately
Errors are ignored by default

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