Reverse of Vovels in Given String:-
Input: 'Question'
Output: 'Qoisteun'
vovelRev(str) {
let arr = [];
let strArr = str.split('');
strArr.forEach((ch, i) => {
if (ch === 'A' || ch === 'E' || ch === 'I' || ch === 'O' || ch === 'U' || ch === 'a' || ch === 'e' || ch === 'i' || ch === 'o' || ch === 'u')
arr.push(i)
});
let k = arr.length - 1;
for (let i = 0; i < arr.length / 2; i++) {
let l = strArr[arr[i]];
strArr[arr[i]] = strArr[arr[k]];
strArr[arr[k]] = l;
k--;
}
console.log(strArr.join(''));
}