jutsu | jitsi meet component wrapper and custom hook | Video Utils library

There are many things wrong with your code

1. You declare nameOneCompleted inside your if so it's undefined elsewhere. Same for nameTwoCompleted. You should define them in the upper scope
2. Your if condition is always truthy thus useless
3. Use const and let instead of the deprecated var
4. You don't need to do 10 ifs, just define an array and pick the n-th element
5. Use camel case when naming js variables: its nameDecode2, not NameDecode2
6. nameDecode2 was a string of several characters, you probably meant to only take the first one, you don't need to slice nameDecode1 for that btw, just use string index. Also convert it to a number before indexing the string.
7. Don't slice when building substrings, just use substring, it's much easier
8. I don't know what you tried to do with the ellipsis but it was wrong, also be aware that the CSS text-overflow: ellipsis might come more handy than trimming the string on the JS side

That should be good: