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| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
| Newsgroups | comp.lang.javascript |
| Subject | Re: Exposing a module in the current scope |
| Date | Tue, 23 Mar 2021 01:00:34 +0100 |
| Organization | PointedEars Software (PES) |
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Anton Shepelev wrote:
> $.import("anton_test/util.xsjslib","util"); // import module
> $.anton_test.util.log("Log from library."); // invoke a function
>
> Is it somehow possible to have all the functions from `util'
> available in the current scope, so that I could invoke them
> by their names: log("Hello"), rather than, say,
> util.log("Hello"),
(Again: No.)
But an alternative standard-compliant and backwards-compatible way is what
has been called an IEFE (“immediately executed function expression”) or a
simiilar term:
$.import("anton_test/util.xsjslib","util"); // import module
$.anton_test.util.log("Log from library."); // invoke a function
(function (log) {
/* … */
}($.anton_test.util.log));
The same caveat applies above as for
const log = $.anton_test.util.log;
which is why typically one writes
(function (util) {
util.log("Log from library.");
}($.anton_test.util));
BTW, I would expect the module loader of such a module system to return, if
successful, a reference to the module object such that – if synchronous
execution cannot be avoided – the following code would be equivalent to the
code above:
const util = $.import("anton_test/util.xsjslib","util");
util.log("Log from library.");
In asynchronous module loading, typically the module object is passed as
argument to the callback:
$.import("anton_test/util.xsjslib", function (util) {
util.log("Log from library.");
});
--
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.
Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Exposing a module in the current scope Anton Shepelev <antonius@freeshell.de> - 2021-03-18 19:21 +0300
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@gmail.com> - 2021-03-18 23:57 +0300
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-18 18:45 -0700
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@g{oogle}mail.com> - 2021-03-19 18:11 +0300
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@g{oogle}mail.com> - 2021-03-19 19:08 +0300
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-19 10:51 -0700
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@gmail.com> - 2021-03-20 13:32 +0300
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-20 09:53 -0700
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-19 10:47 -0700
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@gmail.com> - 2021-03-20 13:51 +0300
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-20 09:59 -0700
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@g{oogle}mail.com> - 2021-03-24 20:43 +0300
Re: Exposing a module in the current scope Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-03-22 21:14 +0100
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-22 16:00 -0700
Re: Exposing a module in the current scope Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-03-23 01:11 +0100
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@gmail.com> - 2021-04-04 00:31 +0300
Re: Exposing a module in the current scope "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-18 11:30 -0700
Re: Exposing a module in the current scope Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-03-22 21:05 +0100
Re: Exposing a module in the current scope Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-03-23 01:00 +0100
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@g{oogle}mail.com> - 2021-03-23 20:06 +0300
Re: Exposing a module in the current scope Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-03-25 20:04 +0100
Re: Exposing a module in the current scope John G Harris <niam@jghnorth.org.uk.invalid> - 2021-03-26 08:32 +0000
Re: Exposing a module in the current scope John G Harris <niam@jghnorth.org.uk.invalid> - 2021-03-26 08:48 +0000
Re: Exposing a module in the current scope Anton Shepelev <anton.txt@g{oogle}mail.com> - 2021-04-13 18:49 +0300
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