method

create type method with given arguments and body

Parameters

method arguments :literal :block
       body :block

Attributes

distinctshouldn't be treated as a magic method
publicmake method public (relevant only in modules!)

Returns

  • :method

Examples

copy
define :cat [
init: method [nick :string age :integer][
    this\nick: join.with: " " @["Mr." capitalize nick]
    this\age: age
]

; Function overloading
add: method [years :integer][
    this\age: age + this\age
]

meow: method [][
    print [~"|this\nick|:" "'meow!'"]
]
        ]

        a: to :cat [15 15]
        ; >> Assertion | [is? :string nick]
        ;        error |  

        snowflake: to :cat ["snowflake" 3]

        snowflake\meow
        ; Mr. Snowflake: 'meow!'

        ; use `do -> snowflake\meow` instead 
        ; when running the above code from a file

        add snowflake 3
        snowflake\age
        ; => 6

        snowflake\add 3
        print snowflake\age
        ; => 9

        ; use `do [snowflake\add 3]` instead
        ; when running the above code from a file

Related