nodejs
diff --git a/Collapse file
‎doc/api/esm.md‎
Copy file name to clipboardExpand all lines: doc/api/esm.md
+6Lines changed: 6 additions & 0 deletions
Display the source diff
Display the rich diff b/Collapse file
‎doc/api/esm.md‎
Copy file name to clipboardExpand all lines: doc/api/esm.md
+6Lines changed: 6 additions & 0 deletions
Display the source diff
Display the rich diff
@@ -332,6 +332,12 @@ syncBuiltinESMExports();
 fs.readFileSync === readFileSync;
 ```
 
+> When importing built-in modules, all the named exports (i.e. properties of the module exports object)
+> are populated even if they are not individually accessed.
+> This can make initial imports of built-in modules slightly slower compared to loading them with
+> `require()` or `process.getBuiltinModule()`, where the module exports object is evaluated immediately,
+> but some of its properties may only be initialized when first accessed individually.
+
 ## `import()` expressions
 
 [Dynamic `import()`][] provides an asynchronous way to import modules. It is