language JS

how to understand this: expected "" to equal ""

This question is wrong, this is PascalCase, not camelCase.

CoffeeScript translation

Generally speaking, camel case can refer to both upper CamelCase and lower camelCase. However, in the JavaScript ecosystem the convention is to use camelCase as the naming for the lowercase version and PascalCase for the uppercase version. Therefor, this Kata should be renamed.

For reference, you could take a look at how it's explained in the airbnb guide which is pretty much the most popular JS style guide: https://github.com/airbnb/javascript#naming--PascalCase.

JavaScript, possibly other languages: Fixed tests contain inputs with leading and trailing spaces, while these are neither specified, nor tested with random tests.

Go: sample tests don´t test anything.

Rust version should not have parameter named after a primitive type: str. Aside from bad practice, it also prevents autocomplete in vscode extension rust-lang.rust.

• No random tests in Ruby

• Ruby 3.0 should be enabled (Refer this & this for more detail)

Duplicate

string passed in random test = 'gvHhSKYagwbwK VPSczvqyoEjgE zCcROzmIjvkLR vkFjRUubXFcfdia ikIOgCdYLwYC'
string returned by my function = 'GvhhskyagwbwkVpsczvqyoejgeZccrozmijvklrVkfjruubxfcfdiaIkiogcdylwyc'
error message says it shoud be = 'GvHhSKYagwbwKVPSczvqyoEjgEZCcROzmIjvkLRVkFjRUubXFcfdiaIkIOgCdYLwYC'

doesn't look very PascalCase (which is correct name for strings with first word capitalized) to me... It's just missing spaces with capitalized first letters (only first letters should be capitalized).