What do the question marks mean in the following connect function in react-redux? Optional parameters?

Question

function connect(mapStateToProps?, mapDispatchToProps?)

Answer 1

Hawk I looked at all the links that you posted but none of them are relevant to my question. Most of them are explaining the ternary operator which my question is not about.

Answer 2

So, right you're

Answer 3

https://www.sololearn.com/discuss/1489538/?ref=app
https://www.sololearn.com/discuss/4215/?ref=app
https://www.sololearn.com/discuss/1903556/?ref=app
https://www.sololearn.com/discuss/1425612/?ref=app
https://www.sololearn.com/discuss/292440/?ref=app
https://www.sololearn.com/discuss/191551/?ref=app
https://www.sololearn.com/discuss/1929344/?ref=app
https://www.sololearn.com/discuss/2169118/?ref=app