console,util: improve array inspection performance

BridgeAR · targos · commit 0bf022d4c0f9 · 2025-10-06T16:19:22.000+02:00
There is no need to do the own property check, since the descriptor is needed right afterwards anyway. PR-URL: #60037 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jordan Harband <ljharb@gmail.com>
diff --git a/lib/internal/util/inspect.js b/lib/internal/util/inspect.js
@@ -2029,11 +2029,12 @@ function formatArray(ctx, value, recurseTimes) {
   const remaining = valLen - len;
   const output = [];
   for (let i = 0; i < len; i++) {
-    // Special handle sparse arrays.
-    if (!ObjectPrototypeHasOwnProperty(value, i)) {
+    const desc = ObjectGetOwnPropertyDescriptor(value, i);
+    if (desc === undefined) {
+      // Special handle sparse arrays.
       return formatSpecialArray(ctx, value, recurseTimes, len, output, i);
     }
-    ArrayPrototypePush(output, formatProperty(ctx, value, recurseTimes, i, kArrayType));
+    ArrayPrototypePush(output, formatProperty(ctx, value, recurseTimes, i, kArrayType, desc));
   }
   if (remaining > 0) {
     ArrayPrototypePush(output, remainingText(remaining));
