3 ms·

So "protocols" are basically operations that can be performed on a data type? I don't get it.

• artsrc 17y ago
  I thought Clojure was duck typed, so I thought it would not require extra boiler plate. Consider a max function that returns the largest of two entities by using a "compare" function. In Python/C++ Templates you must: 1. Have a compare method in your class 2. Call compare in max. In Go you must: 1. Have a compare method for your type 2. Call compare in max. 3. Define a Go interface 'Comparable' with the compare function 4. Declare the args to max to be of type Comparable In Java (OO Style) you must: 1. Have a compare method in your class 2. Call compare in max. 3. Define an interface Comparable to have a compare method 4. Declare max to take type Comparable 5. Declare that your class, with the comparable method implements Comparable.