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_2 : str ) -> bool :
      var_5 , var_6 , var_8 , var_9 = 0 , 0 , len ( var_0 ) , len ( var_2 )
      while var_5 < var_8 and var_6 < var_9 :
          if var_0 [ var_5 ] == var_2 [ var_6 ] :
              var_5 += 1
          var_6 += 1
      return var_5 == var_8
  