It was a fun kata to do but it says to not worry about validation and yet even tho I passed all the normal tests I fail the ones when it gives non valid ecuations such as "-", ((number), so on.

Hi, check the kata.
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Java issue: Some cheaters are using base64 encoding to dodge the disallowed word test. We should add "base64" to the list of disallowed words. There is no legitimate use for base64 in this kata.

python new test frameworks

mocha + chai should be enabled

Missing edge cases like this which will invalidate a lot of solutions (including top-voted one)

var obj = {
  "|": "John",
  "+": "Smith",
  "*": 7,
  "?": "sandwiches"
};
var str = 'Hello {|} {+}, you must eat {*} {?} today!';

Description does not mention how to handle cases when the key is not found in the given object

Could you add a C# version to this kata? Already solved it there before seeing that there was no C# option lol

tests need to be much more torough regarding randomness, and assertions should be improved (test.expect is used in JS and Python)

it is not specified what to do when there are duplicate elements, e.g. should
intersect([0, 0], [0]) return [0, 0] or [0] ? the author's reference solution in JS, which is the original language, does this:

> intersect([0], [0,0])
[ 0 ]
> intersect([0, 0], [0])
[ 0, 0 ]

Solutions below (potentially more) should be disabled in Ruby

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/56216bc9c56f6efe88000061

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/55ca6ee3438a1bcced00006c

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/5a670e4e74df2abd26000ea7

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/619444406bf868000148106f

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/59e86516943fb2789b000d99

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/640d24c4830c6400017cd7e9

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/636976ae0e9afe00019c1eea

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/62752e29e3f82100014361fe

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/57d0591042e44e3f2800010b

• https://www.codewars.com/kata/reviews/5564d1d017229acdc800003b/groups/58f47fde6fbd722342000131

Hello.

I use the Java language.

The tests pass, but when I try to send the code, writes: "For input string:"+"." Then follows Stacktrace, in which: "Java.lang.numberformatexception: for input string:"+". Next, Stacktrace ...".

My calculator returns 0.0 with a transferred line "+". I don’t understand what needs to be returned to go these tests.

I think that the exception should be returned to such a line: "+". Since this is not a mathematical expression. I think the decision is the correctness of the exclusion. But I can’t fully understand in which form to return the exception.

Who can direct to the right thought, please write?