don't mutate the input. Do NEVER mutate the input...

And wen posting about possible issues, please document them correctly (as Seigo did):

• language
• input
• actual
• expected

Same problem with should work test.

For:

moves = ["right", "right", "right", "right", "right", "down", "left", "down", "down", "up", "down", "up", "left", "right", "right", "up"];

Should return:

["E.Honda", "Blanka", "Guile", "Balrog", "Vega", "M.Bison", "Sagat", "Sagat", "Sagat", "Balrog", "Sagat", "Balrog", "Guile", "Balrog", "Vega", "Vega"]

My function returns correct value

I am also having problems:

When I attempt to submit, the code passes all testes except one named "should work".

This test says it expects

'[\'E.Honda\', \'Blanka\', \'Guile\', \'Balrog\', \'Vega\', \'M.Bison\', \'Sagat\', \'Sagat\', \'Sagat\', \'Balrog\', \'Sagat\', \'Balrog\', \'Guile\', \'Balrog\', \'Vega\', \'Vega\']'

, but received

'[]'

Based on the expectation, I set up a test with

moves = ["right","right","right","right","right","down","left","down","down","up","down","up","left","right","right","up"];

with which the output is as expected.

Please check if tests on submit are correct.

I had the same problem, then I realized the instructions are confusing.

If you submit your code to return either true or false, it'll work. the problem is for true I was returning '...is narcissistic'.

In Javascript, the tests and final evaluation fail even with correct answers