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A bunch of functions in core return multiple things to callback. A lot more in userland do the same. Spec or not, that is still something that needs to be accou
by elmigranto 9y ago
A bunch of functions in core return multiple things to callback. A lot more in userland do the same. Spec or not, that is still something that needs to be accounted for.
- idbehold 9y agoThose are handled by `util.promisify()` by having the original function define special properties on itself `Symbol('util.promisify.custom')` and `Symbol('customPromisifyArgs')`. But it's not something handled by default (e.g. resolving an array if the callback gets more than 2 arguments passed to it).
- bfred_it 9y agoBut why. If you're gonna take special steps to handle `util.promisify` you might as well just offer a Promised API and skip `util.promisify`