Emitter "succeeding" but returning undefined

[robross0606]

I'm using p-Event like this:

const httpServer = await pEvent(server.koaApp.listen(config.server.port), 'listening')

The 'listening' event is triggering but the result in httpServer is undefined. What am I doing wrong?

[robross0606]

Also, does p-event have a way to handle situations where the emitter function also returns a value?

[sindresorhus]

You might need to bind the .listen method to the koaApp instance:

const httpServer = await pEvent(server.koaApp.listen.bind(server.koaApp, config.server.port), 'listening')

[sindresorhus]

Also, does p-event have a way to handle situations where the emitter function also returns a value?

No, I have never seen an API like that, so I don't think it's common enough to support such a thing.