Reverse array after space using javascript

Question

I have an array which I want to reverse like

['I', ' ', 'l', 'o', 'v', 'e', ' ', 'E', 'a', 'r', 't', 'h'];

I want to reverse it like this

["I", " ", "e", "v", "o", "l", " ", "h", "t", "r", "a", "E"]

The problem is I can reverse it using array.slice().reverse(); but it reverses the whole array and I want to reverse after where is space.

Answer 1

Well, some dirty solution may be similar to this one:

var sentence = ['I', ' ', 'l', 'o', 'v', 'e', ' ', 'E', 'a', 'r', 't', 'h'];
    
var reversed = sentence.join('').split(' ').map(word => word.split('').reverse().join('')).join(' ').split(''); 
    
console.log(reversed);

Answer 2

You can make it a string, then split and flatMap

const arr = ['I', ' ', 'l', 'o', 'v', 'e', ' ', 'E', 'a', 'r', 't', 'h'];

const res = arr
              .join('')
              .split(' ')
              .flatMap(e => (e + ' ').split('').reverse())
              .slice(1);

console.log(res);