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    "https://leetcode.com/problems/valid-number\n",
    "\n",
    "\n",
    "Runtime: 57 ms, faster than 12.96% of Python3 online submissions for Valid Number.\n",
    "Memory Usage: 14.2 MB, less than 62.37% of Python3 online submissions for Valid Number.\n",
    "\n",
    "\n",
    "```python\n",
    "import re\n",
    "\n",
    "class Solution:\n",
    "    def isNumber(self, s: str) -> bool:\n",
    "        #2022.1.10 8:23\n",
    "        try:\n",
    "            value = float(s)\n",
    "            if abs(value) == float('inf'):\n",
    "                #print(\"hi\")\n",
    "                #m = re.search('\\d+\\.*[eE]\\.*\\d+', s)\n",
    "                #if m != None:\n",
    "                #    return True\n",
    "                if \"e\" in s.lower():\n",
    "                    return True\n",
    "                return False\n",
    "            return True\n",
    "        except Exception as e:\n",
    "            return False\n",
    "        #2022.1.10 8:25\n",
    "        #debug until 8:34\n",
    "```"
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