[171243]

input: "bcabc"

  1. "b"
  2. "bc"
  3. "bca"
  4. "bca"
  5. "bca"

What am I missing?

[kangnkodos]

Take all the possible answers with duplicates removed, and return the first one in alphabetical order.

input: "bcabc"

output: "abc"

[MaximumYComb]

Nothing. I hadn't fleshed out my idea yet and that's the error I thought could exist. My solution is wrong.

[pizza_dave]

that is a single line of code in javascript, assuming you just want the value in #5 const foo = [...new Set('bcabc'.split(''))].join('')