Please look at the top of the page: 387 people solved the JS kata.

Can anyone confirm this is solvable in JS?

same for me.With JS it is not going well.

if n > 170, then it return NaN, using JS, with others numbers it works

not exactly like this one

fixed now its working correctly. also guys I don't know how to use Random.

More accurately, it seems replaceSpacess is the name of the function that the test code uses to generate the expected solution, and that it was simply not included in the test cases. Thus, random cases can be bypassed by just making sure replaceSpaces and replaceSpacess return the same thing.

There're already many katas asking you to perform a regexp-based replace.

Random tests expect the function to be called replaceSpacess.

Description formatting is broken, and the examples are displayed wrongly.

This is not new.

Also, you're not using appropriate data types, you're illustrating the order of combinations by example instead of specifying it, and you're missing "", which is quite generally accepted to be a valid combination. Oh, and, no random tests.

Please just unpublish this.