doc: improve process.emitWarning() example

PR-URL: nodejs#9590 Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Prince John Wesley <princejohnwesley@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
danbev · Nov 16, 2016 · 71d4a74 · 71d4a74
1 parent 89469c8
commit 71d4a74
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/doc/api/process.md b/doc/api/process.md
@@ -821,11 +821,10 @@ so, it is recommended to place the `emitWarning()` behind a simple boolean
 flag as illustrated in the example below:
 
 ```js
-var warned = false;
 function emitMyWarning() {
-  if (!warned) {
+  if (!emitMyWarning.warned) {
+    emitMyWarning.warned = true;
     process.emitWarning('Only warn once!');
-    warned = true;
   }
 }
 emitMyWarning();