when:js模式匹配实用程序，可帮助您编写更简洁的代码

Javascript模式匹配实用程序，可帮助您编写更简洁的代码 我们都喜欢三元运算符，但有时很难读懂 const adminUser = {name: 'Aragorn', password: 'the_king' } const login = (user, password) => !user, ? 'Fill the user name plz' : !password ? 'Fill the password plz' : user !== adminUser.name ? `There's not a registered user with the name ${name}` : password !== adminUser