Most of the answers below are direct quotes from ES 5.1
> - What do you call something that produces instances in JavaScript? A > class? A type? A constructor? Or is a constructor the implementation of a > type? > A constructor. http://es5.github.com/#x4.3 > > - Are Date and RegExp built-in types? What do you call the value of the > global variable Date? Is new Date() an instance of a type or an instance of > a constructor? > These are constructor properties of the global object. http://es5.github.com/#x15.1.4 When Date is called as part of a new expression, it is a constructor: it initialises the newly created object. http://es5.github.com/#x15.9.3 > - What about primitives?Are there primitive types and object types? Is the > union of the two called just “types”? > A member of one of the types Undefined, Null, Boolean, Number, or String http://es5.github.com/#x4.3.2 Everything else is an object. > > - If instance factory B inherits from instance factory A, is B a subclass > of A? B a subtype of A? B a subconstructor of A? > B inherits A's prototype, A is in B's "prototype chain" > > - Does a class literal (if it makes it into ES.next) define a class? Is a > class the implementation of a type? > I can't answer this > > Intuitively, it is clear how things work, but I find it difficult to be > precise when talking/writing about them. > > -- > Dr. Axel Rauschmayer > [email protected] > > home: rauschma.de > twitter: twitter.com/rauschma > blog: 2ality.com > > > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
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