Spelling Bee Help

spelling-bee.js

const letters = ["P", "H", "A", "D", "L", "E", "N"]
const middleLetter = "H"

const wordStart = "PE";
let possibleWords = [];

const updateWordList = (words, maxLength) => {
  if (!words[0] || words[0].length < maxLength) {
    const newWords = words.map(word => {
      return letters.map((letter) => {
        return word.concat(letter);
      })
    })
    const unique = Array.from(new Set(newWords.flat()))
    updateWordList(unique, maxLength)
  } else {
    possibleWords = words.filter(fragment => 
      fragment.includes(middleLetter)
    ).sort()
  }
}

updateWordList(Array(6).fill(wordStart), 6)

console.log(possibleWords.join(`\n`))

And then I ran node spelling-bee.js | pbcopy and pasted it into a spreadsheet.