Events: Difference between revisions

=={{header|JavaScript}}==

An example using the [[wp:Yahoo!_UI_Library|YUI]] library:

<lang javascript>YUI().use('event-custom', function(Y) {

// add a custom event:

Y.on('my:event', function () {

alert("Event fired");

});

// fire the event after one second:

setTimeout(function () {

Y.fire('my:event');

}, 1000);

});</lang>

An example simulating [[wp:Document_Object_Model|DOM]] events:

<lang javascript>YUI().use('node-event-simulate', function(Y) {

// add a click event handler to a DOM node with id "button":

Y.one("#button").on("click", function (e) {

alert("Button clicked");

});

// simulate the click after one second:

setTimeout(function () {

Y.one("#button").simulate("click");

}, 1000);

});</lang>

=={{header|Perl 6}}==

{{trans|Go}}

<lang perl6>note now, " program start";

my $event = Channel.new;

my $todo = start {

note now, " task start";

$event.receive;

note now, " event reset by task";

}

note now, " program sleeping";

sleep 1;

note now, " program signaling event";

$event.send(0);

await $todo;</lang>

{{out}}

<pre>Instant:1403880984.089974 program start

Instant:1403880984.095400 program sleeping

Instant:1403880984.095491 task start

Instant:1403880985.099381 program signaling event

Instant:1403880985.109395 event reset by task</pre>

See also [[Handle_a_signal#Perl_6]] for an example of using Supplies to do reactive programming based on events (Unix signals in this case).