What happens to the result of the add, sub, mul, and div operations? Specifically: Is the result pushed onto the stack as a new top value, or does it change the value of the current top value on the stack? This isn't clear from the description or the example.

It was not mentioned that in JS, the integer division uses bitwise operator instead of Math.floor or Math.trunc.

It seems that the Python and JavaScript versions are unequal. The Python version is more difficult because it requires the possibility to re-use intermediate results. My submitted JavaScript solution would not pass the Immutability Check fixed test from Python.

Julia translation

in the example of the description, why the commend isn't aBA? Looks to me like shift is still down, tho.

Operator functions are right associative.

Are you sure prefix operators have associativity?

Your definitions should allow multiple bubbly language statement in one script.

How?

What would the expected value be for, say (start)(push)(5)(end)(start)(push)(3)(end) ?

This is not explained in the description or the example tests.

Hi,

Unfortunately, you just did a duplicate of several other katas. You should unpublish it.

(here is one of them, adding perf requirements. But there are others in the database)

cheers

(edit: 'realized the one in the link is'nt the exact same outside of the perf aspect, but there are others that are exact duplicates of yours)

The Java assertEquals args are back-to-front in the Sample tests.