문제 링크 : Valid Word
/**
* @param {string} word
* @return {boolean}
*/
var isValid = function(word) {
if (word.length > 2
&& !/\W/.test(word)
&& /[aeiouAEIOU]/.test(word)
&& /[b-df-hj-np-tv-zB-DF-HJ-NP-TV-Z]/.test(word)) return true;
return false;
};