#### 문제 링크
https://programmers.co.kr/learn/courses/30/lessons/81301
function solution(s) {
return Number(
s.replace(/zero/g, '0')
.replace(/one/g, '1')
.replace(/two/g, '2')
.replace(/three/g, '3')
.replace(/four/g, '4')
.replace(/five/g, '5')
.replace(/six/g, '6')
.replace(/seven/g, '7')
.replace(/eight/g, '8')
.replace(/nine/g, '9')
)
}