function matcher(s, p) {
  let matches = true;
  let i = 0;

  s = s.split('');
  p = p.split('');
  for (let j = 0; j < p.length; j++){
    // Letter, no asteriks
    if (p[j] !== '.' && p[j+1] !== '*'){
      if (s[i] !== p[j]){
        console.log(`letter, no asteriks: ${s[i]} != ${p[j]}`)
        matches = false;
        break;
      }
      i += 1;
      continue;
    }

    // Letter, asteriks
    if (p[j] !== '.' && p[j+1] === '*'){
      if (s[i] !== p[j]){
        console.log(`letter, asteriks: ${s[i]} != ${p[j]}`)
        matches = false;
        break;
      }
      while (s[i] === p[j]){
        i += 1;
      }
      j += 1; // Accomodate for asteriks
      continue;
    }

    // Dot, no asteriks
    if (p[j] === '.' && p[j+1] !== '*'){
      if (i >= s.length){
        console.log(`dot, not asteriks: ${i}>=${s.length}`)
        matches = false;
        break;
      }
      i += 1;
      continue;
    }

    // Dot, asteriks
    else if (p[j] === '.' && p[j+1] === '*'){
      if (i >= s.length){
        console.log(`dot, asteriks: ${i}>=${s.length}`)
        matches = false;
        break;
      }
      let current = s[i]
      while (s[i] === current){
        i += 1;
      }
      j += 1; // Accomodate for asteriks
      continue;
    }
  }

  // More string left to match not covered by pattern
  if (i < s.length) {
    console.log(`whole string not matched: ${i} < ${s.length}`)
    matches = false;
  }

  return matches
}

console.log(matcher("abcd", "abcdefg")) //false
console.log(matcher("abcd", "abc")); //false
console.log(matcher("abc", "abc")); //true
console.log(matcher("zabc", ".abc")); //true
console.log(matcher("abc", ".*")); //false
console.log(matcher("abbbbbbcd", "a.*cd")); //true
console.log(matcher("abbfbbbcd", "a.*cd")); //false
console.log(matcher("aaccbbhhhhhh", "a*c*b*f*")); //false