js-types-n-oop.js

@@ -119,7 +119,6 @@
 
 // Prototypes and inheritance
 //
-// XXX
 
 	var a = {
 	}
@@ -132,14 +131,6 @@
 
 
 // Constructors
-//
-// A constructor is simply a function that "constructs" or populates an
-// object. 
-//
-// By convention constructor functions are capitalized (Pascal-case)
-//
-// Classic constructors are called with a "new" keyword which creates a
-// bare instance and passes it to the function as the call context.
 //
 
 	function A(){
@@ -155,12 +146,7 @@
 		__proto__: A.prototype,
 	}
 
-//
-// The problem with the default way this is done is that now a 
-// constructor will behave differently when called directly or if called
-// via the new syntax. This can be desirable in some cases but in 
-// general this is a pitfall, so let's unify the two cases:
-//
+// XXX a safer way -- now we can forget new...
 
 	function B(){
 		var obj = {
@@ -169,10 +155,10 @@
 		return obj
 	}
 
-	// this can be called with and without new:
+	// this can be calles with and withot new
 	var z = B() 
 
-	// less naive -- reuses the instance created by new...
+	// less naive...
 	function C(){
 		var obj = this instanceof C ?
 			this
@@ -182,11 +168,6 @@
 	// make C instances related to B...
 	C.prototype.__proto__ = B.prototype
 
-//
-// Note that constructor extension is trivial if you think of how 
-// prototypical inheritance works, to link A and B "instances" all we 
-// needed to do is link the constructor prototypes in the code above.
-//
 
 
 // Extending builtin types