LeetCode/JavaScript/wildcard-matching.js at main · PranamBhat/LeetCode · GitHub

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/**
 * @param {string} s
 * @param {string} p
 * @return {boolean}
 */

var isMatch = function(s, p) {
    var dp = Array(p.length + 1).fill(0).map(_ => ({}));
    return test(s, p, 0, 0, dp);
};

var test = function (s, p, sIndex, pIndex, dp) {
  if (dp[pIndex][sIndex] !== undefined)
      return dp[pIndex][sIndex];

  var sNow = s[sIndex];
  var pNow = p[pIndex];
  var res = false;

  if (pNow === undefined)
      return sNow === undefined;
  if (sNow === undefined) {
    for (var i = pIndex; i < p.length; i++) {
      if (p[i] !== '*')
          return false;
    }
    return true;
  }

  if (sNow === pNow || pNow === '?') {
    res = test(s, p, sIndex + 1, pIndex + 1, dp);
  } else if (pNow === '*') {
    res = test(s, p, sIndex, pIndex + 1, dp) || test(s, p, sIndex + 1, pIndex + 1, dp) || test(s, p, sIndex + 1, pIndex, dp);
  }

  dp[pIndex][sIndex] = res;

  return res;

};