Boo who
- Basic Algorithm Scripting: Boo who | freeCodeCamp.org
- Boolean - JavaScript | MDN
- freeCodeCamp Challenge Guide: Boo who - Guide - The freeCodeCamp Forum
我写的
1function booWho(bool) {
2 if (bool === false || bool === true) {
3 return true
4 } else {
5 return false
6 }
7}
8
9console.log(booWho(1))还可以这样写：
1function booWho(bool) {
2 return typeof bool === 'boolean'
3}
4
5console.log(booWho(1))