module: add isBuiltin method

doc/api/module.md

@@ -62,6 +62,22 @@ const require = createRequire(import.meta.url);
 const siblingModule = require('./sibling-module');
 ```
 
+### `module.isBuiltIn(moduleName)`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* `moduleName` {string} name of the module
+* Returns: {boolean} returns true if the module is builtin else returns false
+
+```mjs
+import { isBuiltIn } from 'node:module';
+isBuiltIn('node:fs'); // true
+isBuiltIn('fs'); // true
+isBuiltIn('wss'); // false
+```
+
 ### `module.syncBuiltinESMExports()`
 
 <!-- YAML

lib/internal/modules/cjs/loader.js

@@ -60,6 +60,7 @@ const {
   StringPrototypeIndexOf,
   StringPrototypeMatch,
   StringPrototypeRepeat,
+  StringPrototypeReplace,
   StringPrototypeSlice,
   StringPrototypeSplit,
   StringPrototypeStartsWith,
@@ -1293,5 +1294,10 @@ Module.syncBuiltinESMExports = function syncBuiltinESMExports() {
   }
 };
 
+Module.isBuiltIn = function isBuiltIn(moduleName) {
+  moduleName = StringPrototypeReplace(String(moduleName), /^node:/, '');
+  return ArrayPrototypeIncludes(Module.builtinModules, moduleName);
+};
+
 // Backwards compatibility
 Module.Module = Module;

test/parallel/test-module-isBuiltIn.js

@@ -0,0 +1,13 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+const { isBuiltIn } = require('module');
+
+// Includes modules in lib/ (even deprecated ones)
+assert(isBuiltIn('http'));
+assert(isBuiltIn('sys'));
+
+// Does not include internal modules
+assert(!isBuiltIn('internal'));
+assert(!isBuiltIn(''));
+assert(!isBuiltIn(undefined));