[naming conventions] saving reference to this, use _this. fixes airbnb#32

hshoff · hshoff · commit e6243c95cde6 · 2012-11-19T14:03:13.000-08:00
diff --git a/README.md b/README.md
@@ -954,6 +954,34 @@
     this._firstName = 'Panda';
     ```
 
+  - When saving a reference to `this` use `_this`.
+
+    ```javascript
+    // bad
+    function() {
+      var self = this;
+      return function() {
+        console.log(self);
+      };
+    }
+
+    // bad
+    function() {
+      var that = this;
+      return function() {
+        console.log(that);
+      };
+    }
+
+    // good
+    function() {
+      var _this = this;
+      return function() {
+        console.log(_this);
+      };
+    }
+    ```
+
   - Name your functions. This is helpful for stack traces.
 
     ```javascript
