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Async await in JavaScript - part-3
This document explains error handling in JavaScript using async and await. It illustrates how to use a catch method for promises that result in an error and also shows the use of try/catch for error management within an asynchronous function. Example codes are provided to demonstrate both methods of error handling.
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Async await in JavaScript - part-3
- 1.
- 2. HANDLING ERRORS If apromise 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 wantto 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()