Improve type checking in ol.coordinate

2013-04-30 21:29:56 +02:00
parent d2979fc4ff
commit 539529af59
1 changed files with 8 additions and 3 deletions
--- a/src/ol/coordinate.js
+++ b/src/ol/coordinate.js
@@ -35,9 +35,14 @@ ol.coordinate.add = function(coordinate, delta) {
 * @return {ol.CoordinateFormatType} Coordinate format.
 */
 ol.coordinate.createStringXY = function(opt_precision) {
-  return function(coordinate) {
-    return ol.coordinate.toStringXY(coordinate, opt_precision);
-  };
+  return (
+      /**
+       * @param {ol.Coordinate|undefined} coordinate Coordinate.
+       * @return {string} String XY.
+       */
+      function(coordinate) {
+        return ol.coordinate.toStringXY(coordinate, opt_precision);
+      });
 };