doc: document process.moduleLoadList

doc/api/process.md

@@ -2858,6 +2858,31 @@ console.log(memoryUsage.rss());
 // 35655680
 ```
 
+## `process.loadedModules`
+
+<!-- YAML
+added: v0.5.3
+-->
+
+* Type: {string\[]}
+
+The `process.loadedModules` property returns an array of core modules that
+were loaded during the current Node.js process execution.
+
+```mjs
+import { loadedModules } from 'node:process';
+
+console.log(loadedModules);
+// ['events', 'buffer', 'diagnostics_channel', 'async_hooks', ...]
+```
+
+```cjs
+const { loadedModules } = require('node:process');
+
+console.log(loadedModules);
+// ['events', 'buffer', 'diagnostics_channel', 'async_hooks', ...]
+```
+
 ## `process.nextTick(callback[, ...args])`
 
 <!-- YAML

lib/internal/bootstrap/realm.js

@@ -80,6 +80,14 @@
   writable: false,
 });
 
+// Set up process.loadedModules
+const loadedModules = [];
+ObjectDefineProperty(process, 'loadedModules', {
+  __proto__: null,
+  get() { return ArrayPrototypeSlice(loadedModules); },
+  configurable: true,
+  enumerable: true,
+})
 
 // processBindingAllowList contains the name of bindings that are allowed
 // for access via process.binding(). This is used to provide a transition
@@ -405,6 +413,9 @@
     // "NativeModule" is a legacy name of "BuiltinModule". We keep it
     // here to avoid breaking users who parse process.moduleLoadList.
     ArrayPrototypePush(moduleLoadList, `NativeModule ${id}`);
+    if(!StringPrototypeStartsWith(id, 'internal/')) {
+      ArrayPrototypePush(loadedModules, id);
+    }
     return this.exports;
   }
 }