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ASYNC &
AWAIT IN
JAVASCRIPT
PART THREE
HANDLING ERRORS
If a promise results in an error, you handle it
with a catch call, like this:
const getOne = async (success = true) => {
if (success) return 1
throw new Error('Failure!')
}
getOne(false)
.catch(error => console.log(error)) // Failure!
If you want to handle an error in an asynchronous
function, you need to use a try/catch call.
const test = async _ => {
try {
const one = await getOne(false)
} catch (error) {
console.log(error) // Failure!
}
}
test()

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Async await in JavaScript - part-3

  • 2. HANDLING ERRORS If a promise results in an error, you handle it with a catch call, like this: const getOne = async (success = true) => { if (success) return 1 throw new Error('Failure!') } getOne(false) .catch(error => console.log(error)) // Failure!
  • 3. If you want to handle an error in an asynchronous function, you need to use a try/catch call. const test = async _ => { try { const one = await getOne(false) } catch (error) { console.log(error) // Failure! } } test()