i will try to fix it

should not use any banned words

expected true to deeply equal false

The ** operator is not the * operator, yet it is forbidden.

( Tests give false positives. I'm assuming Bits' issue below is more about false negatives. )

( Also, the above error message is not helpful. )

reduce encapsulates recursion.

Forbidding recursion without forbidding reduce makes no sense.

( Forbidding recursion makes no sense, full stop. )

Generally, forbidding specific things to force solvers into your preferred direction is a fool's errand. It'll be a war of attrition nobody, in the end, wins.

without using for, while, recursion, * and /

This is not enforced properly.

Sample tests:

ReferenceError: assert is not defined

i am forgor

it will not work if symbol "|" in the sentence