Tagged partial methods, like:

var a = parcial('b');

try { a.b() }
catch(e) { ok(e.message == 'unimplemented') }

a.b = {tag: function() { return "you're it" }};
a.b('tag'); //⇒ "you're it"

a.b = {another: function(a) { return a * 2 }};
a.b('another', 5); //⇒ 10

a.b = {tag: function() { return "you got me" }};
a.b('tag'); //⇒ "you got me"

api

parcial(name, options = {strict: true})

Returns an object with a getter and setter for the method name. If options.strict is false, the method does not throw an exception if it encounters a tag it doesn't know about.

why

Parcial works great with mixins. No need to do a deep merge; just use partials:

var base = parcial('method');

var a = {method: {a: function() { return 'a' }}};
var b = {method: {b: function() { return 'b' }}};
var c = {method: {c: function() { return 'c' }}};

var agg = xtend({}, base, a, b, c);
agg.method('a'); //⇒ 'a'
agg.method('b'); //⇒ 'b'
agg.method('c'); //⇒ 'c'

Licence

MIT. © 2014 Matt Brennan