On Aug 3, 1:46 pm, Nick <gummyb...@gmail.com> wrote:
> Having access to Object.prototype is important, because I implement
> Douglas Crockford's Object.prototype.beget method (which will be added
> to the next ECMAScript version as Object.create).
>
the Maps API fully utilizes functional programming techniques,
especially the map() function which applies a function to all elements
of a list, or all properties of an object. But these iterators can
break when inheriting unexpected properties from Object.
In this case it seems to be related to precondition assertions, that
the values of a StreetViewPov heading, pitch and zoom are all
numbers. There is a constructor for StreetViewPov, and also another
object which has the assertion function corresponding to each
property. But pi is unexpected, and there is no function pi() to
check whether it has a valid value:
var obj = {
zoom: L,
heading: L,
pitch: L
}
where L() is a function which verifies something is a number.
A workaround would be to use Crockford's first technique, a global
function called object(prototype), see the following link:
http://javascript.crockford.com/prototypal.html
...
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