Spinner: Update classes option to use empty string instead of null

arschmitz · arschmitz · commit d305f0633979 · 2014-10-18T10:42:13.000-04:00
diff --git a/tests/unit/spinner/spinner_common.js b/tests/unit/spinner/spinner_common.js
@@ -1,9 +1,9 @@
 TestHelpers.commonWidgetTests( "spinner", {
 	defaults: {
 		classes: {
-			"ui-spinner-input": null,
+			"ui-spinner-input": "",
 			"ui-spinner": "ui-corner-all",
-			"ui-spinner-button": null,
+			"ui-spinner-button": "",
 			"ui-spinner-up": "ui-corner-tr",
 			"ui-spinner-down": "ui-corner-br"
 		},
diff --git a/ui/spinner.js b/ui/spinner.js
@@ -42,9 +42,9 @@ return $.widget( "ui.spinner", {
 	widgetEventPrefix: "spin",
 	options: {
 		classes: {
-			"ui-spinner-input": null,
+			"ui-spinner-input": "",
 			"ui-spinner": "ui-corner-all",
-			"ui-spinner-button": null,
+			"ui-spinner-button": "",
 			"ui-spinner-up": "ui-corner-tr",
 			"ui-spinner-down": "ui-corner-br"
 		},
