js how to reverse a string

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

1function reverse(str){  
2  let reversed = "";      
3   for (var i = str.length - 1; i >= 0; i--){         
4     reversed += str[i];  
5   }     
6  return reversed;
7}

1function reverseString(str) {
2    var newString = "";
3    for (var i = str.length - 1; i >= 0; i--) {
4        newString += str[i];
5    }
6    return newString;
7}
8reverseString('hello');

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

1var s = userInput[0];
2var rev = [];
3for(let i=0;i<s.length;i++)
4{
5    rev.push(s[s.length-1-i]);
6}
7console.log(rev.join(""));