Using the wrong Node version?

This very much looks like user error and not a kata issue. Closing. ( Next time, ask a Question. )

Look hard at your loop condition and what you do inside it. Also, read the instructions again and check the last example.

Comparing array to integer

len is not declared anywhere

Returning true if the first character of the PIN code is a number

I'm surprised JS doesn't throw any errors while running this spaghetti code...