I solved it with using replace with regexp. However I am still confused why there was error with toUpperCase function called. There is only string as input as I need to dig this deeper.

I am doing it in js. it is going fine. i am looking forward to learn and contribute.......it's a nice platform.

Empty line ?
Changes ?
Output ?

Thanks

Not hard kata)

the head of each word should not be capitalized

how much do you rank it

Invalidated it checking it against current tests.

This solution checks if the input (not the output) is <= 140 characters which shouldn't pass
https://www.codewars.com/kata/reviews/5b86545bb80ee00ca6000358/groups/5b93d82c986d6e6b3d000d3d

Mark your post as having spoiler content next time. Look at the strings harder, they're not the same:

      v
'#DoWehaveAHashtag' <- This is your answer
'#DoWeHaveAHashtag' <- This is the expected one
      ^

All words must have their first letter capitalized

too hard for an 8kyu, should be at least a 4

did the same hehe

The order of the tests is odd. Test 3 assumes that capitalization is already implemented, which is only expected from test 6. Test 4 is arguably easier than 3 and should probably be run first.

It is a good exercise for kata 5-6