doc: fix ESM/CJS wrapper example

PR-URL: #34853 Refs: #34714 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Rich Trott <[email protected]>
nodejs · Sep 22, 2020 · da150f4 · da150f4
1 parent 3ea7e03
commit da150f4
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/doc/api/esm.md b/doc/api/esm.md
@@ -637,6 +637,12 @@ CommonJS entry point for `require`.
 }
 ```
 
+The above example uses explicit extensions `.mjs` and `.cjs`.
+If your files use the `.js` extension, `"type": "module"` will cause such files
+to be treated as ES modules, just as `"type": "commonjs"` would cause them
+to be treated as CommonJS.
+See [Enabling](#esm_enabling).
+
 ```js
 // ./node_modules/pkg/index.cjs
 exports.name = 'value';