DESCRIPTION:
Trolls are attacking your comment section!
A common way to deal with this situation is to remove all of the vowels from the trolls' comments, neutralizing the threat.
Your task is to write a function that takes a string and return a new string with all vowels removed.
For example, the string "This website is for losers LOL!" would become "Ths wbst s fr lsrs LL!".
Note: for this kata y isn't considered a vowel.
思路：
题目是需要把字符串里的元音‘aeiou’全部去掉。
第一个思路是用正则替换；
第二个思路应该是转换成array然后用filter过滤；
Solution：
第一种思路的解法：
disemvowel = str => str.replace(/[aeiou]/gi, '')
[...] 表示需要匹配中括号中的所有字符
g global表示全部匹配
i ignore表示不区分大小写
第二种思路的解法：
const vowels = 'aeiou';
disemvowel = str => str.split('').filter(i => !vowels.includes(i.toLowerCase())).join('')
