mandolin:用Monadic类型无痛地增强您JavaScript

曼陀林 用monadic类型无痛地增强您JavaScript。 const definition = m . define ( { firstName : m . string , lastName : Option . as ( m . string ) , email : Option . as ( m . string ) , phoneNumber : Either . as ( m . string , m . number ) } ) ; definition . parse ( { firstName : "Bob" , lastName : "McAdoo" , email : null , phoneNumber : "444-444-4444" } ) // Right({ // firstName: "Bob", // l