Why Is .join(" "); Not Working On Variable That Points To Reversed Array?

If I chain it: reverser.split(' ').reverse().split(' '), it works. But, if I split, reverse, then join the variable -- it doesn't perform the join: var s = 'How are you'; function

Solution 1:

The .join() function returns a string. It doesn't transform the target array into a string.

So,

reverser = reverser.join(" ");

Solution 2:

joins returns a string and you have to store it in the variable.

var s = "How are you";

functionreverser(str){
  var reversed = str.split(" ");
  reversed.reverse();
   reversed=reversed.join(" ");
  return reversed;
};

console.log('doesn\'t work ', reverser(s));

Solution 3:

split() splits the string into array of strings. You need to store the resulting output everytime so that next operation can be performed right.

var s = "How are you";
functionreverser(str){
var reverser = str.split(" ");
var revArray=reverser.reverse();
var revArrayJoined=revArray.join(" ");
return revArrayJoined;
};

console.log(reverser(s));
//output: you are How