Fix xo errors (test script)

[delaguilaluis]

This PR aims to fix the "errors" in the test script output, which is currently failing and showing:

src/nav.js:8:31
  ✖   8:31  Don't use a zero fraction in the number.     unicorn/no-zero-fractions
  ✖  25:5   Use a for-of loop instead of this for loop.  unicorn/no-for-loop

  2 errors

[GregDuhamel]

Tested, works for me.