LeetCode: Valid Number Solution

1/**
2 * @param {string} s
3 * @return {boolean}
4 */
5var isNumber = function (s) {
6  return !s.includes("Infinity") && !Number.isNaN(Number(s))
7}
8
9var isNumber = function (s) {
10  return /^[+-]?((\d+\.?\d*)|(\d*\.?\d+))([eE][+-]?\d+)?$/.test(s)
11}