I think my browser addon (uMatrix) was blocking parts of the output... Thanks

There are two more translations (python and JS). Here is a description on howto find and approve or decline those:
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Did you disable console.log somehow? I think your tests should already output some failure message! Best practice would be to be more descriptive though. For instance:

Test.describe("Testing 'mutators'", function(){
    Test.it ("pop", function(){
      Test.assertEquals(stringArray("1,hey,3","pop"), "1,hey", "'pop' failed");
    });
    // ...
});

Test.describe("Testing 'properties'", function(){
  // length etc
});

Does not provide any failure messages.
Besides that, nice idea and nice kata.
Thank you

There is a little typo in the description: "jsFunction" [...] which should jst return the corresponding array property value"

Why is the solution area prefilled with
var websites = [];?
Would it not be better to start with sth like:

function stringArray(arrayStr, functionOrProperty, optionalArgs) {
  // Your code here
}

Yeah, I first tried to modify the Safe obj. Nice puzzle :-)

I modified your 'Safe' such that it looks like:

{ makeMessage: [Function],
getMessage: [Function],
message: '123' }
[Function]
123
The message said: 123

But "123" is still wrong...

That was fast :-)

remove namespace bank and put public static int in correct order in c#

Thank you, but almost:

namespace Bank {
  using System;
  public class Pizza
  { // ...

Furthermore it has to be public static int and not public int static.

javascript translation kumited

What does the prefilled C# code has to do with this kata? It starts with

namespace Bank {
  using System;
  public class Account
  { 
  // ...

Besides that, nice cutter!