He says s: or before some lines path: . What is it?
s:
path:
Picture
It method parameter name hints tells what is the name of the argument from the name of the method that is being called:
method parameter name hints
You can turn them off with CMD+ SHIFT+ Aand enter hints then pressEnter
hints
In the most recent versions of IntelliJ, right click on the name (as you can see in the picture pathname: ) and select Disable Parameter Name Hints , this will hide the word Parameter name hints in the method definitions.
pathname:
Disable Parameter Name Hints
Parameter name hints