// 3.___
const convertToStar=(sentences="aa aa")=>{
  const sentArr = sentences.split(' ');
  let newSentences=[]
  sentArr.forEach((word,idx)=>{
    if(word.length>2){
      let newWord='';
      const lengthWord = word.length
      word.split('').forEach((char,idx)=>{
        if(idx>0&&idx<lengthWord-1){
          newWord+="*"
        }else{
          newWord+=char
        }
      })
      newSentences[idx]=newWord
    }else{
      newSentences[idx]=word
    }
  })
  return newSentences.join(' ')
}

console.log(convertToStar('bootcamp fullstack java'))

// 4._____
const lengthSentences=(sentences)=>{
  const length = sentences.replace(/\s/g, "").length
  return length
}

console.log(lengthSentences('bootcamp fullstack java'))


// 5.____
const totalWords=(sentences)=>{
  const length = sentences.split(' ').length
  return length
}

console.log(totalWords('bootcamp fullstack java'))