345.反转字符串中的元音字母 about leetcode

[zzcyes]

题解

当左指针和右指针匹配的字符串都为元音时匹配即可。

方法一：双指针

/**
 * @param {string} s
 * @return {string}
 */
var reverseVowels = function(s) {
  let vowels = ['a', 'A', 'e', 'E', 'i', 'I', 'o', 'O', 'u', 'U'];
  s = s.split('');
  let p1 = 0;
  let p2 = s.length - 1;
  while (p1 < p2) {
    if (vowels.includes(s[p1]) && vowels.includes(s[p2])) {
      [s[p1], s[p2]] = [s[p2], s[p1]];
      p1++;
      p2--;
    } else if (!vowels.includes(s[p1])) {
      p1++;
    } else if (!vowels.includes(s[p2])) {
      p2--;
    }
  }
  return s.join('');
};