A variation of Allen’s Class Definition Pattern

[Axel Rauschmayer]

http://wiki.ecmascript.org/doku.php?id=harmony:object_extension_literal_class_pattern

I like the Class Definition Pattern and tried to make it more flexible:

    const className = superClass <| function(/*constructor parameters */) {
        //constructor body
        super.constructor(/*arguments to super constructor */);
        this.{
         //per instance property definitions
        };
    }.withPrototype({
        //instance properties defined on prototype
    }).withProperties({
        //class (ie, constructor) properties
    });

- Approach: Define two methods Function.prototype.withPrototype() and Function.prototype.withProperties(). The latter task could also be performed via the object extension operator – I used a method for reasons of symmetry. Both methods return "this".

- Advantages compared to using the object extension operator:
    - Can omit the class property definition (without having to append ".constructor").
    - Both “clauses” can be swapped.

-- 
Dr. Axel Rauschmayer

axel at rauschma.de
twitter.com/rauschma

home: rauschma.de
blog: 2ality.com



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