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Update reverse-vowels-of-a-string.js #16

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Update reverse-vowels-of-a-string.js #16

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34 changes: 18 additions & 16 deletions Algorithms/Reverse Vowels of a String/reverse-vowels-of-a-string.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,29 +6,31 @@
* @param {string} s
* @return {string}
*/
var reverseVowels = function(s) {
var vowelString = "aeiouAEIOU"
, arr = s.split('')
, len = arr.length;

const vowelString = "aeiouAEIOU";
function getVowelArr(len, arr) {
var vowelArr = [];

for (var i = 0; i < len; i++) {
if (vowelString.indexOf(arr[i]) !== -1)
if (vowelString.includes(arr[i])) {
vowelArr.push(arr[i]);
}
}
return vowelArr;
}
var reverseVowels = function(s) {
var arr = s.split(""),
len = arr.length;
//first in last out
let vowelStack = getVowelArr(len, arr);

vowelArr.reverse();

var ansStr = ''
, idx = 0;

var ansStr = "";
for (var i = 0; i < len; i++) {
if (vowelString.indexOf(arr[i]) !== -1)
ansStr += vowelArr[idx++];
else
if (vowelString.includes(arr[i])) {
ansStr += vowelStack.pop();
} else {
ansStr += arr[i];
}
}

return ansStr;
};
};