Seong-lae Chofunction do not need define with no need of name
simple function with remove def, bracket and one line
usually used for functions (for collections)
key variable need function variable (lambda type is 'function')
- sort
- filter
- reduce
위키독스
온라인 책을 제작 공유하는 플랫폼 서비스
https://wikidocs.net/64
