Enable "strict" mode -- and fix one missing "var" declaration.

[dygraphs.git] / dygraph-canvas.js

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 5b2cac8..77d8cc4 100644 (file)
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -23,7 +23,10 @@
  * @param {Layout} layout The DygraphLayout object for this graph.
  * @constructor
  */
-DygraphCanvasRenderer = function(dygraph, element, elementContext, layout) {
+
+"use strict";
+
+var DygraphCanvasRenderer = function(dygraph, element, elementContext, layout) {
   this.dygraph_ = dygraph;
 
   this.layout = layout;