Linkedin js test for skills

I created a profile there to take the test that i heard off, i lot of bait questions, i finished bottom 30% out of all who took it.
They showed incrementing expressing where the ++ is in the begining of the variable like this: ++variableName, im like whaat?
Any way i put fcc as my current school in there.
Doing great on codewars so far.
Thank you.

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HI @zak !

Sounds like they were talking about prefix and postfix increments.
MDN does a good job explaining how they work