Fund: Rule proposal: `prefer-error-cause`

Rule proposal: prefer-error-cause

3 years ago

👍

When throwing a new error in try/catch or Promise#catch, should add the old error as new error's cause property.

Fail

try {} catch {
	throw new Error('oops');
}

// (I'm not sure about this)
try {} catch (error) {
	error.message = 'oops';
	throw error;
}

promise.catch(() => {
	throw new Error('oops');
})

// Same as above
promise.then(null, () => {
	throw new Error('oops');
})

try {} catch (error) {
	throw new Error('oops', {cause: error});
}

promise.catch((error) => {
	throw new Error('oops', {cause: error});
})