FAQ Topic - What is a native object? (2010-08-02)
in [JavaScript]
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From: FAQ server on 1 Aug 2010 19:00 ----------------------------------------------------------------------- FAQ Topic - What is a native object? ----------------------------------------------------------------------- A native object is any object whose semantics are fully defined by ECMA-262. Some native objects are built-in; others, such as user-defined objects, may be constructed during the execution of an ECMAScript program. Example: // Native built-in objects: var m = Math, // Built-in Math object. slice = Array.prototype.slice, // Built-in native method. o = {}, // Native user-defined object. f = function(){}, // Native user-defined function. d = new Date(), a = [], e = new Error("My Message."); See also: <URL: http://dmitrysoshnikov.com/ecmascript/chapter-7-2-oop-ecmascript-implementation/> The complete comp.lang.javascript FAQ is at http://jibbering.com/faq/ -- The sendings of these daily posts are proficiently hosted by http://www.pair.com.
From: Ry Nohryb on 2 Aug 2010 04:41 On Aug 2, 1:00 am, "FAQ server" <javascr...(a)dotinternet.be> wrote: > ----------------------------------------------------------------------- > FAQ Topic - What is a native object? > ----------------------------------------------------------------------- > > A native object is any object whose semantics are fully defined by > ECMA-262. > > Some native objects are built-in; others, such as user-defined objects, > may be constructed during the execution of an ECMAScript program. > (...) And some native objects are provided by the host environment. -- Jorge.
From: Asen Bozhilov on 2 Aug 2010 05:28 Ry Nohryb wrote: > "FAQ server" wrote: > > Some native objects are built-in; others, such as user-defined objects, > > may be constructed during the execution of an ECMAScript program. > > (...) > > And some native objects are provided by the host environment. What do you mean? Host environment provides only host objects. Host objects can be implemented as native ECMAScript objects, but your objections are for entry about host objects. If the maintainer of FAQ include your objections here, the readers would be confused what exactly is host object and what is native object.
From: David Mark on 2 Aug 2010 05:37 On Aug 2, 5:28 am, Asen Bozhilov <asen.bozhi...(a)gmail.com> wrote: > Ry Nohryb wrote: > > "FAQ server" wrote: > > > Some native objects are built-in; others, such as user-defined objects, > > > may be constructed during the execution of an ECMAScript program. > > > (...) > > > And some native objects are provided by the host environment. > > What do you mean? Near as I can tell, Jorge posts confusing nonsense in hopes of getting attention. > Host environment provides only host objects. Host > objects can be implemented as native ECMAScript objects, but your > objections are for entry about host objects. If the maintainer of FAQ > include your objections here, the readers would be confused what > exactly is host object and what is native object. Just ignore him. Maybe he'll go away.
From: Ry Nohryb on 2 Aug 2010 11:32
On Aug 2, 11:28 am, Asen Bozhilov <asen.bozhi...(a)gmail.com> wrote: > Ry Nohryb wrote: > > "FAQ server" wrote: > > > Some native objects are built-in; others, such as user-defined objects, > > > may be constructed during the execution of an ECMAScript program. > > > (...) > > > And some native objects are provided by the host environment. > > What do you mean? Host environment provides only host objects. Host > objects can be implemented as native ECMAScript objects, but your > objections are for entry about host objects. If the maintainer of FAQ > include your objections here, the readers would be confused what > exactly is host object and what is native object. A host object is an object supplied by the host environment. A native object is an object that fully implements the object semantics defined by the Ecma-262 specification. A host object can be at the same time a native object: there are native host objects and non-native host objects. :-) -- Jorge. |