Improve type checking in ol.canvas.SUPPORTED

2013-12-13 15:51:57 +01:00
parent 8f6952c56c
commit b39ae367e7
1 changed files with 16 additions and 12 deletions
@@ -9,7 +9,11 @@ goog.require('goog.dom.TagName');
 * @const
 * @type {boolean}
 */
-ol.canvas.SUPPORTED = (function() {
+ol.canvas.SUPPORTED = (
+    /**
+     * @return {boolean} Canvas supported.
+     */
+    function() {
      if (!('HTMLCanvasElement' in goog.global)) {
        return false;
      }