module exports

[Mark Volkmann]

I have used Node.js extensively. In that environment, as I'm sure you know,
a module exports one thing. It can be an object with lots of properties on
it, a single function, or a single value. I suppose you could say that all
Node has is a "default" export which is the one thing the module exports.

I'm trying to understand how that compares to ES6 modules. I see how in ES6
I can import specific things from a module or I can import everything a
module exports. Am I correct that a "default" export can be somewhere in
the middle ... a subset of everything that is exported?


On Fri, Mar 14, 2014 at 8:22 AM, Domenic Denicola <
domenic at domenicdenicola.com> wrote:

> Have you ever used JavaScript module systems before? If so, the idea of a
> default export should be somewhat familiar...
>
> > On Mar 14, 2014, at 6:31, "Mark Volkmann" <r.mark.volkmann at gmail.com>
> wrote:
> >
> > I'm trying to understand the options for exporting things from a module.
> > Here's how I think it works, mostly based on what I see in Traceur.
> > Does any of this look wrong?
> >
> > To export a value,
> > export var someName = someValue;
> >
> > To export a function,
> > export function someName(args) { ... };
> >
> > To export multiple things defined elsewhere in this file,
> > export {name1, name2, ...};
> >
> > Here's the part that confuses me most. It seems that importers have
> three options.
> > 1) import specific things from a given module
> > 2) import everything that was exported from a given module
> > 3) import a subset of what a given module exports that it identified as
> the "default" (presumably the most commonly used things)
> >
> > To define the default subset of things to export from a module,
> > export default = some-value or some-function;
> > where some-value could be an object holding a collection of things to
> export.
> >
> > --
> > R. Mark Volkmann
> > Object Computing, Inc.
> > _______________________________________________
> > es-discuss mailing list
> > es-discuss at mozilla.org
> > https://mail.mozilla.org/listinfo/es-discuss
>



-- 
R. Mark Volkmann
Object Computing, Inc.
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