Codewars Bar recommends you drink 1 glass of water per standard drink so you‘re not hungover tomorrow morning.
Your fellow coders have bought you several drinks tonight in the form of a string. Return a string suggesting how many glasses of water you should drink to not be hungover.
"1 beer"
"1 glass of water"
You drank one standard drink
题目：
"1 shot, 5 beers, 2 shots, 1 glass of wine, 1 beer"
"10 glasses of water"
You drank ten standard drinks
Note:
To keep the things simple, we‘ll considere that any "numbered thing" in the string is a drink. Even "1 bear" => "1 glass of water" or "1 chainsaw and 2 pools" => "3 glasses of water"...
function hydrate(s) {
if(!s){
return ‘1 beer‘
}
let sum=0,f=‘ glasses of water‘;
let str = s.replace(/\d+/g,function(){
sum += parseInt(arguments[0]);
});
if(sum==1||sum==0){
f=‘ glass of water‘
}
return sum+f
}
原文：https://www.cnblogs.com/yinghuang/p/12658940.html