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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /dom/events/EventTarget-add-remove-listener.any.html - WPT Dashboard Interop Dashboard
- /dom/events/EventTarget-add-remove-listener.any.worker.html - WPT Dashboard Interop Dashboard
// META: title=EventTarget's addEventListener + removeEventListener
"use strict";
function listener(evt) {
evt.preventDefault();
return false;
}
test(() => {
const et = new EventTarget();
et.addEventListener("x", listener, false);
let event = new Event("x", { cancelable: true });
let ret = et.dispatchEvent(event);
assert_false(ret);
et.removeEventListener("x", listener);
event = new Event("x", { cancelable: true });
ret = et.dispatchEvent(event);
assert_true(ret);
}, "Removing an event listener without explicit capture arg should succeed");