Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I'd suggest adding a specific test checking for duplicates for JavaScript or removing it from the info / instructions if you didn't really want that to be part of the kata.
Could just add "I" twice to the array in var vv...
vv = ["I", "1.9", "ou", "ve", "ect", "I", "omm", "gla", "oint", "pini", "wh", "oes", "by", "ion", "or", "he", "ple", "ing"]
Then update the var arr1 to...
var arr1 = sample(vv,x+1), arr2 = sample(uu,15+x*2), exp = in__array(arr1,arr2).sort().filter(function(item, index, arr) { return item != arr[index - 1] });