Como criar seu próprio emissor de evento em javascript
// create a custom event
const custom_event = new CustomEvent("custom_event_name", {
// whether or not the event 'bubbles' up the DOM tree
bubbles: true,
// special property allowing you to provide additional information
detail: {
}
});
// to add an event listener
element.addEventListener("custom_event_name", function() {
// event handler
});
// to trigger an event
element.dispatchEvent(custom_event);
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