freecodecamp--freecodecamp/curriculum/challenges/english/blocks/daily-coding-challenges-javascript/68d2ba1468508398389487ce.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
68d2ba1468508398389487ce	Challenge 73: Speak Wisely, You Must	28	challenge-73

--description--

Given a sentence, return a version of it that sounds like advice from a wise teacher using the following rules:

• Words are separated by a single space.
• Find the first occurrence of one of the following words in the sentence: "have", "must", "are", "will", "can".
• Move all words before and including that word to the end of the sentence and:
  • Preserve the order of the words when you move them.
  • Make them all lowercase.
  • And add a comma and space before them.
• Capitalize the first letter of the new first word of the sentence.
• All given sentences will end with a single punctuation mark. Keep the original punctuation of the sentence and move it to the end of the new sentence.
• Return the new sentence, make sure there's a single space between each word and no spaces at the beginning or end of the sentence.

For example, given "You must speak wisely." return "Speak wisely, you must."

--hints--

wiseSpeak("You must speak wisely.") should return "Speak wisely, you must."

assert.equal(wiseSpeak("You must speak wisely."), "Speak wisely, you must.");

wiseSpeak("You can do it!") should return "Do it, you can!"

assert.equal(wiseSpeak("You can do it!"), "Do it, you can!");

wiseSpeak("Do you think you will complete this?") should return "Complete this, do you think you will?"

assert.equal(wiseSpeak("Do you think you will complete this?"), "Complete this, do you think you will?");

wiseSpeak("All your base are belong to us.") should return "Belong to us, all your base are."

assert.equal(wiseSpeak("All your base are belong to us."), "Belong to us, all your base are.");

wiseSpeak("You have much to learn.") should return "Much to learn, you have."

assert.equal(wiseSpeak("You have much to learn."), "Much to learn, you have.");

--seed--

--seed-contents--

function wiseSpeak(sentence) {

  return sentence;
}

--solutions--

function wiseSpeak(sentence) {
  const triggers = ["have", "must", "are", "will", "can"];
  const punctuation = sentence[sentence.length - 1];
  const words = sentence.split(" ");

  const triggerIndex = words.findIndex(w => triggers.includes(w));

  const toMove = words.slice(0, triggerIndex + 1).map(w => w.toLowerCase());
  const remaining = words.slice(triggerIndex + 1);

  const newStart = remaining.map((w, i) => {
    return i === 0 ? w[0].toUpperCase() + w.slice(1) :
      i === remaining.length - 1 ? w.slice(0, w.length - 1) : w;
  })

  return newStart.join(" ") + ", " + toMove.join(" ") + punctuation;
}