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Nicer try/catch for async await. Updated gist here: https://gist.github.com/DavidWells/56089265ab613a1f29eabca9fc68a3c6. This is now a package https://www.npmjs.com/package/safe-await
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/* Helper buddy for removing async/await try/catch litter 🗑 */ | |
function O_o(promise) { | |
return promise.then(data => { | |
if (data instanceof Error) return [data] | |
return [null, data] | |
}).catch(err => [err]) | |
} | |
/* Look ma, no try/catch */ | |
async function usageExample(params) { | |
const [ err, data ] = await O_o(myPromise(params)) | |
if (err) { | |
// handle or throw err | |
throw new Error(err) | |
} | |
// Do stuff with data | |
return data | |
} | |
/* Normal promise */ | |
function myPromise(params) { | |
return new Promise((resolve, reject) => { | |
callbacker(params, (error, data) => { | |
if (error) return reject(error) | |
return resolve(data) | |
}) | |
}) | |
} | |
/* Normal callback */ | |
function callbacker(params, cb) { | |
return cb(null, params) | |
} | |
// Run the thing | |
const params = {lol: 'true'} | |
usageExample(params).then((result) => { | |
console.log('result', result) | |
}).catch((err) => { | |
console.log('error', err) | |
}) |
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