Static captureStatic defaultname property is set to 'MaxListenersExceededWarning&
Static Readonly error'error' listener is installed.
'error' listener is installed.
Symbols.
emitter.setMaxListeners(n) or defaults to
Inherited from EventEmitter.getMaxListeners
.once()).
once('ping')lis
EventEmitter instance. The value can be
Static addStatic getStatic getReturns the currently set max amount of listeners.
+For EventEmitters this behaves exactly the same as calling .getMaxListeners on
+the emitter.
For EventTargets this is the only way to get the max event listeners for the
+event target. If the number of event handlers on a single EventTarget exceeds
+the max set, the EventTarget will print a warning.
import { getMaxListeners, setMaxListeners, EventEmitter } from 'node:events';
{
const ee = new EventEmitter();
console.log(getMaxListeners(ee)); // 10
setMaxListeners(11, ee);
console.log(getMaxListeners(ee)); // 11
}
{
const et = new EventTarget();
console.log(getMaxListeners(et)); // 10
setMaxListeners(11, et);
console.log(getMaxListeners(et)); // 11
}
+v19.9.0
+Static listenerStatic onStatic once
Listens once to the
+abortevent on the providedsignal.Listening to the
+abortevent on abort signals is unsafe and may +lead to resource leaks since another third party with the signal can +calle.stopImmediatePropagation(). Unfortunately Node.js cannot change +this since it would violate the web standard. Additionally, the original +API makes it easy to forget to remove listeners.This API allows safely using
+AbortSignals in Node.js APIs by solving these +two issues by listening to the event such thatstopImmediatePropagationdoes +not prevent the listener from running.Returns a disposable so that it may be unsubscribed from more easily.
+ +