Fix #11309. Recognize hexadecimal in data attributes.

src/data.js

@@ -333,7 +333,7 @@ function dataAttr( elem, key, data ) {
 				data = data === "true" ? true :
 				data === "false" ? false :
 				data === "null" ? null :
-				jQuery.isNumeric( data ) ? parseFloat( data ) :
+				jQuery.isNumeric( data ) ? +data :
 					rbrace.test( data ) ? jQuery.parseJSON( data ) :
 					data;
 			} catch( e ) {}

test/unit/data.js

@@ -298,7 +298,7 @@ test(".data(String) and .data(String, Object)", function() {
 });
 
 test("data-* attributes", function() {
-	expect(37);
+	expect(38);
 	var div = jQuery("<div>"),
 		child = jQuery("<div data-myobj='old data' data-ignored=\"DOM\" data-other='test'></div>"),
 		dummy = jQuery("<div data-myobj='old data' data-ignored=\"DOM\" data-other='test'></div>");
@@ -356,6 +356,7 @@ test("data-* attributes", function() {
 		.attr("data-five", "5")
 		.attr("data-point", "5.5")
 		.attr("data-pointe", "5.5E3")
+		.attr("data-hexadecimal", "0x42")
 		.attr("data-pointbad", "5..5")
 		.attr("data-pointbad2", "-.")
 		.attr("data-badjson", "{123}")
@@ -370,6 +371,7 @@ test("data-* attributes", function() {
 	strictEqual( child.data("five"), 5, "Primitive number read from attribute");
 	strictEqual( child.data("point"), 5.5, "Primitive number read from attribute");
 	strictEqual( child.data("pointe"), 5500, "Primitive number read from attribute");
+	strictEqual( child.data("hexadecimal"), 66, "Hexadecimal number read from attribute");
 	strictEqual( child.data("pointbad"), "5..5", "Bad number read from attribute");
 	strictEqual( child.data("pointbad2"), "-.", "Bad number read from attribute");
 	strictEqual( child.data("badjson"), "{123}", "Bad number read from attribute");