1function reverseString(s){
2    return s.split("").reverse().join("");
3}
4reverseString("Hello");//"olleH"

1function reverseString(str) {
2    return str.split("").reverse().join("");
3}
4reverseString("hello");

1function reverse (word) {
2    word = word.split('.').reverse().join('.')
3    return word
4
5}
6word = 'i.like.this.program.very.much'
7word = 'pqr.mno'
8console.log(reverse(word))
9

1function reverseWords(str) {
2  const allWords = str.split(" ")
3  return allWords.map(item => item.split("").reverse().join("")).join(" ")
4}

1function reverseInPlace(str) {
2  var words = [];
3  words = str.match(/\S+/g);
4  var result = "";
5  for (var i = 0; i < words.length; i++) {
6     result += words[i].split('').reverse().join('') + " ";
7  }
8  return result
9}
10console.log(reverseInPlace("abd fhe kdj"))