Serialize: Handle arrays with null values

DanielNill · mgol · commit 3d7ce0a65f07 · 2015-09-07T22:45:23.000+02:00
Closes gh-2436
diff --git a/src/serialize.js b/src/serialize.js
@@ -28,7 +28,7 @@ function buildParams( prefix, obj, traditional, add ) {
 
 				// Item is non-scalar (array or object), encode its numeric index.
 				buildParams(
-					prefix + "[" + ( typeof v === "object" ? i : "" ) + "]",
+					prefix + "[" + ( jQuery.type( v ) === "object" ? i : "" ) + "]",
 					v,
 					traditional,
 					add
diff --git a/test/unit/serialize.js b/test/unit/serialize.js
@@ -1,7 +1,7 @@
 QUnit.module( "serialize", { teardown: moduleTeardown } );
 
 QUnit.test( "jQuery.param()", function( assert ) {
-	assert.expect( 22 );
+	assert.expect( 23 );
 
 	var params, settings;
 
@@ -77,6 +77,9 @@ QUnit.test( "jQuery.param()", function( assert ) {
 	params = { "test": { "length": 3, "foo": "bar" } };
 	assert.equal( jQuery.param( params, false ), "test%5Blength%5D=3&test%5Bfoo%5D=bar", "Sub-object with a length property" );
 
+	params = { "test": [ 1, 2, null ] };
+	assert.equal( jQuery.param( params, false ), "test%5B%5D=1&test%5B%5D=2&test%5B%5D=", "object with array property with null value" );
+
 	if ( jQuery.ajaxSettings === settings ) {
 		delete jQuery.ajaxSettings;
 	} else {
