nodejs
diff --git a/‎lib/internal/event_target.js‎
Lines changed: 6 additions & 1 deletion b/‎lib/internal/event_target.js‎
Lines changed: 6 additions & 1 deletion
diff --git a/‎test/parallel/test-eventtarget.js‎
Lines changed: 13 additions & 1 deletion b/‎test/parallel/test-eventtarget.js‎
Lines changed: 13 additions & 1 deletion
@@ -125,7 +125,7 @@ class Event {
   get bubbles() { return this.#bubbles; }
   get composed() { return this.#composed; }
   get eventPhase() {
-    return this[kTarget] ? 2 : 0;  // Equivalent to AT_TARGET or NONE
+    return this[kTarget] ? Event.AT_TARGET : Event.NONE;
   }
   get cancelBubble() { return this.#propagationStopped; }
   set cancelBubble(value) {
@@ -136,6 +136,11 @@ class Event {
   stopPropagation() {
     this.#propagationStopped = true;
   }
+
+  static NONE = 0;
+  static CAPTURING_PHASE = 1;
+  static AT_TARGET = 2;
+  static BUBBLING_PHASE = 3;
 }
 
 Object.defineProperty(Event.prototype, SymbolToStringTag, {
 
@@ -432,7 +432,6 @@ ok(EventTarget);
   target.removeEventListener('foo', a, { capture: false });
   target.dispatchEvent(new Event('foo'));
 }
-
 {
   const target = new EventTarget();
   strictEqual(target.toString(), '[object EventTarget]');
@@ -464,3 +463,16 @@ ok(EventTarget);
     });
   });
 }
+
+{
+  strictEqual(Event.NONE, 0);
+  strictEqual(Event.CAPTURING_PHASE, 1);
+  strictEqual(Event.AT_TARGET, 2);
+  strictEqual(Event.BUBBLING_PHASE, 3);
+  strictEqual(new Event('foo').eventPhase, Event.NONE);
+  const target = new EventTarget();
+  target.addEventListener('foo', common.mustCall((e) => {
+    strictEqual(e.eventPhase, Event.AT_TARGET);
+  }), { once: true });
+  target.dispatchEvent(new Event('foo'));
+}
Original file line number	Diff line number	Diff line change
@@ -125,7 +125,7 @@ class Event {
125	125	get bubbles() { return this.#bubbles; }
126	126	get composed() { return this.#composed; }
127	127	get eventPhase() {
128		- return this[kTarget] ? 2 : 0; // Equivalent to AT_TARGET or NONE
	128	+ return this[kTarget] ? Event.AT_TARGET : Event.NONE;
129	129	}
130	130	get cancelBubble() { return this.#propagationStopped; }
131	131	set cancelBubble(value) {
@@ -136,6 +136,11 @@ class Event {
136	136	stopPropagation() {
137	137	this.#propagationStopped = true;
138	138	}
	139	+
	140	+ static NONE = 0;
	141	+ static CAPTURING_PHASE = 1;
	142	+ static AT_TARGET = 2;
	143	+ static BUBBLING_PHASE = 3;
139	144	}
140	145
141	146	Object.defineProperty(Event.prototype, SymbolToStringTag, {