On Tuesday, 5 July 2016 at 20:38:53 UTC, Eugene Wissner wrote:
On Tuesday, 5 July 2016 at 08:24:43 UTC, O/N/S wrote:
Hi ("Grüss Gott")
I like the asynchronous events in Javascript.
Is something similar possible in D?
Found Dragos Carp's asynchronous library
(https://github.com/dcarp/asynchronous).
Are there any more integrated (in Phobos/in D) ways to work
asynchronously?
An example: One server ask a second server to calculate
something big.
The first server continues with his work, until the answer
come back from the second.
And so on...
Using threads or fibers would be a way, but has not the same
elegancy like the Javascript way. (To avoid discussions: D is
better ;-)
Greetings from Munich,
Ozan
Can you describe what would you like to see more concretly. I
know js but how is it supposed to work for D? Maybe you can
give some example, kind of pseudo code? It would help me much
to build a concept and maybe we will see someday something
usable in this area :)
Hi,
I took a typical example (using jquery lib, other js-libs have
similar calls)
$.ajax({
type: "POST",
url: myurl,
dataType: "JSON",
data: $myData,
async: true,
success: function(success) { ... },
error: function(error) { ... }
});
If response is successful -> call function(success)
If response has errors -> call function(error)
In the meanwhile the code can continue without waiting for the
response.
In D-style it would look like
...do something..
funcAjax(["type":"POST"...], delegateSuccess, delegateError);
- or -
funcAjax(["type":"POST"...], (success) => {...}, (error) =>
{...});
...continue without waiting...
Why delegates not functions? Because responses could require
changes in data, which are outside (yeah, I know, it's also
technically possible with function, but that's not the idea
behind)
Greetings from Munich, Ozan
