The question is as follow, for each word in the line, print the character based on the index if the length is greater than the index [4:52] so for the first line, `[h]ey g[o]od la[w]yer` (edited) [4:53] hey is the first word, so take the first index, which is `h` good is the second word, so take the second index, which is `o`... [4:53] if the se…

decrypt.js

function decrypt (str) {
  let counter = 0
  return str.split(' ').reduce((a, b) => {
    if (b.length >= counter + 1) {
      const part = b[counter]
      counter += 1
      return a + part
    }
    return a
  }, '')
}

function main () {
  const inputs = [
    'hey good lawyer',
    'as I previously previewed',
    'yam does a soup',
    'first I give money to teresa',
    'after I inform dad of',
    'your horrible soup'
  ]
  console.log(inputs.map(decrypt))
}

main()