events: remove eventtarget custom inspect branding

efekrskl · RafaelGSS · commit 6da85b576b26 · 2026-01-13T10:04:51.000-03:00
PR-URL: #61128 Reviewed-By: Aviv Keller <me@aviv.sh> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
diff --git a/lib/internal/event_target.js b/lib/internal/event_target.js
@@ -867,8 +867,6 @@ class EventTarget {
 return new CustomEvent(type, { detail: nodeValue });
 }
 [customInspectSymbol](depth, options) {
- if (!isEventTarget(this))
- throw new ERR_INVALID_THIS('EventTarget');
 const name = this.constructor.name;
 if (depth < 0)
 return name;
diff --git a/test/parallel/test-eventtarget-custom-inspect-does-not-throw.js b/test/parallel/test-eventtarget-custom-inspect-does-not-throw.js
@@ -0,0 +1,19 @@
+'use strict';
+
+require('../common');
+const assert = require('assert');
+const util = require('util');
+
+const symbol = util.inspect.custom;
+
+const eventTargetInspect = EventTarget.prototype[symbol];
+
+const fakeEventTarget = {
+ [symbol]: eventTargetInspect,
+ someOtherField: 42
+};
+
+// Should not throw when calling the custom inspect method
+const output = util.inspect(fakeEventTarget);
+
+assert.strictEqual(typeof output, 'string');

Original file line number	Diff line number	Diff line change
`@@ -867,8 +867,6 @@ class EventTarget {`
`867`	`867`	`returnnewCustomEvent(type,{detail: nodeValue});`
`868`	`868`	`}`
`869`	`869`	`[customInspectSymbol](depth,options){`
`870`		`-if(!isEventTarget(this))`
`871`		`-thrownewERR_INVALID_THIS('EventTarget');`
`872`	`870`	`constname=this.constructor.name;`
`873`	`871`	`if(depth<0)`
`874`	`872`	`returnname;`
-Original file line number
+Diff line change
@@ @@ -0,0 +1,19 @@ @@
 +'use strict';
++
 +require('../common');
 +constassert=require('assert');
 +constutil=require('util');
++
 +constsymbol=util.inspect.custom;
++
 +consteventTargetInspect=EventTarget.prototype[symbol];
++
 +constfakeEventTarget={
 +[symbol]: eventTargetInspect,
 +someOtherField: 42
 +};
++
 +// Should not throw when calling the custom inspect method
 +constoutput=util.inspect(fakeEventTarget);
++
 +assert.strictEqual(typeofoutput,'string');