Ah, you can only start adding/deleting from one index? Might be good to make it more clear in the description :) Thanks!

no problem, good luck)

ah got it, my bad on the count of 'v'. will edit my answer to deal with this problem. thanks!

hey jeroenpol, can you write your answer like it
{
index: 13,
addedText: "sass",
deletedText: "a"
}

Hey yuhaocooper, thanks for your message, if we add 'v' in 14 position and remove one space we will get:
'vvvvvvv vvvvvvvvvvvvv'
but we need to have
'vvvvvvv vvvvvvvvvvv'

'vvvvvvv vvvvvv vvvvvv', 'vvvvvvv vvvvvvvvvvv'

Hi, i'm having some issue with the this test case above. I'm able to pass everything but this case. The solution suggest Index: 14, added: '', deleted: ' v'

My solution gets Index: 14, added: 'v', deleted: ' ' Which fulfills all the conditions listed in the description. Is there something wrong?

I don't think this solution is right:

"sssssssssssssassssss"
"ssssssssssssssassssssss"

addedText: "sass", deletedText: "a".

At first, one "s" is removed. Then the strings are equal again until "ss" is added.