Adding clause of and/or to if statement in google docs script

Question

I need to include and/or statement to an if condition in google script. I am new to script and am not able to find a way to do so. Please help

if (dateval<>"") and (repval<>"") {condition if true}

Thank you for the help.

Answer 1

you can find all the infos on that subject (and others ) on this site.

in your example the answer is

if (dateval!="" && repval!="") {do something}