Callback arrow function returns undefined

Asked Jun 05 '20 at 18:08

Active Jun 05 '20 at 18:08

Viewed 20 times

This:

HeartbeatBridge.getInfo(8001, response => { return response })

returns: undefined

But this:

HeartbeatBridge.getInfo(8001, response => { console.log(response) })

returns a value in my log.

Question: Why the first line returns undefined? How can i get a value returned in the first line?

asked Jun 05 '20 at 18:08

Alberto Labuto

The second line doesn't return anything. You are explicitly performing a console log as part of the callback logic. – Taplar Jun 05 '20 at 18:10
You do not need the return keyword. `HeartbeatBridge.getInfo(8001, response => response)` – Markus Zeller Jun 05 '20 at 18:10

0 Answers0