comefrom: <doocs>0392.Is Subsequence_1.py
code: def isSubsequence( s: str, t: str) -> bool:
      i, j, m, n = 0, 0, len(s), len(t)
      while i < m and j < n:
          if s[i] == t[j]:
              i += 1
          j += 1
      return i == m
masked: def sample_funcname ( var_0 : str , var_1 : str ) -> bool :
      var_2 , var_3 , var_4 , var_5 = 0 , 0 , len ( var_0 ) , len ( var_1 )
      while var_2 < var_4 and var_3 < var_5 :
          if var_0 [ var_2 ] == var_1 [ var_3 ] :
              var_2 += 1
          var_3 += 1
      return var_2 == var_4
  