Handle click event inside {#each} block in svelte - event-handling

I am a svelte beginner and i have a problem with event handlers inside the each block.
In the Repl when i click shuffle multiple times, i have multiple event listener for the heart inside the card. The click event on the card works fine and has only one event listener.
How can i prevent to have multiple event listeners on the heart?
Repl

You could remove they key, that way the items are re-created, and the event handlers aren't sticking around.
{#each dataShow as d (d.poi)} => {#each dataShow as d}

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How to get Notify of Input Mouse Released when using GameplayCueNotify_Looping

I have been working on a project based on Lyra Framework and am currently trying to implement a Weapon Ability: Charge_Ability - like Halo energy pistol. Here is my issue:
In the GCNL, I am attempting to Bind the OnReleased Mouse Click Event to the OnLoopingStart. Doing so, I expect the OnReleased Mouse Click Event to be fired when the input broadcast its message so I can release my “Charge Ability Bolt Fx”.
However, when running debug printString, the OnLoopingStart is never called. Only the OnRecurring Event is fire.
How can I properly register the OnRelease Event from the GCNL to retrieve input released from mouse click?
Thanks!

UE5 Create Event issues

I am having issues creating an event inside a function.
My function calls a “Bind Event to On Destroyed”. When dragging out the Event node, I call Create Event. After dragging the output of my bind event actor into the Create Event “Object” input, I select “Create a matching event” from the dropdown.
Afterwards, a new custom event appears inside my function, let’s call it “RespawnEvent”:
Now, when I search for the event in my “Create Event” dropdown, it just doesn’t appear:
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how to properly fire Leaflet MarkerCluster clusterclick event

I would like to simulate a click to a MarkerClusterGroup. I am trying to fire the clusterclick event on a MarkerCluster using the method below:
clusterGroup.fire('clusterclick');
but I get:
Uncaught TypeError: Cannot read property 'zoomToBounds' of undefined
First you should realize that the "clusterclick" event is normally triggered by clicking on an individual cluster, not on the entire group. That event calls a specific behaviour that depends on the actual clicked cluster (typically, it zooms on the bounds of the markers contained within that cluster).
Therefore you are just missing an event data object that specifies which cluster is simulated to have been clicked on. It should be the 2nd argument of fire() method.
Another possibility would be to fire a "click" event directly on a selected cluster. That would automatically fire the "clusterclick" event on the group, with the correct event data object.

How to debug custom DOM events?

Is it possible to see (debug) custom events being fired from DOM elements in the browser?
Let's say I want to see which specific element of the Bootstrap Collapse fires the show.bs.collapse event, can I somehow see it for instance in Chrome dev tools?
First off, Monitor Events will handle this for normal JS events. However, Bootstrap events are jQuery events, so vanilla JS event listeners don't listen for them.
To listen to jQuery events run the following code snippet in your console:
jQuery('body').bind("show.bs.collapse", function(e){console.log(e);});
Replace "shown.bs.collapse" with whatever event you want. When they are logged, just check the target element for the event to know what fired it.
Now, for the other way around, to see what is listening to events. Within the elements panel, if you go to the event listener tab and uncheck "ancestors", then you will see only the directly bound event listeners on an element. This way you know what is listening for the event so you can inspect what should be done when it is fired. This matters, since you may find 'body' isn't getting the event, since it could have bubbling cancelled. So if the above snippet isn't working, you need to check for bubble cancelling in the element listening for the event.
Firefox offers out of the box, listeners for jQuery events, https://developer.mozilla.org/en-US/docs/Tools/Page_Inspector/How_to/Examine_event_listeners
But you can extend it: http://flailingmonkey.com/view-jquery-and-jquery-live-events-in-firefox-devtools/
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MouseOver and MouseOut events does not get fired by a widget

I have two widgets listening for a MouseOutEvent. Problem is that sometimes this events does not get called on both of the widgeth even if you mouse out of them.
No error is thrown and this is extremely hard to debug.
My understanding is that this event is fired by a browser, so I don't understand why this is not happening. I am registering this event to the widget itself.
Any suggestions will be a great help.
Thanks
Sounds like you might have used addHandler to register to your MouseOverHandler. Widget has two methods for adding event handlers, addDomHandler and addHandler. The first is meant to be used for DomEvents, e.g. MouseOutEvents. It sinks the event on the widget, which means that your listener will get notified (this is only necessary for DomEvents). Those events might not get fired if you do not use addDomHandler to register your handler.