is-subsequence

Link : https://leetcode.com/problems/is-subsequence/

var isSubsequence = function (s, t) {
  if (s.length > t.length) {
    return false;
  }
  let i = 0;
  let j = 0;
  while (i < s.length && j < t.length) {
    if (s[i] == t[j]) {
      i++;
    }
    j++;
  }
  if (i == s.length) {
    return true;
  } else {
    return false;
  }
};