I think I/we are one the right track! Thank you, but it says this error:
it should be += 1 I think not ++1 because you are incrementing, and that means you still have the same value but adding 1, except that the one that is in the picture, it means you are adding, but there isn’t an equation.
“variable += a” is the same as “let variable = variable ++ a”
you don’t need the one
Thank you for everyone who helped me do this. Turns out it was annoying bracket problems and I put enemyIndex += 1; in the wrong place. 
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i already said that
It was somewhere else.
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