Serialize: Reduce size

Ref 9fdbdd393a0f0ebdcd837cf102878c8b45860c3b

1 files changed, 8 insertions, 7 deletions

diff --git a/src/serialize.js b/src/serialize.js
index 9a735fec1..5f9d6c0ae 100644
--- a/src/serialize.js
+++ b/src/serialize.js
@@ -55,14 +55,15 @@ function buildParams( prefix, obj, traditional, add ) {
 jQuery.param = function( a, traditional ) {
 	var prefix,
 		s = [],
-		add = function( key, value ) {
+		add = function( key, valueOrFunction ) {
 
-			// If value is a function, invoke it and return its value
-			value = jQuery.isFunction( value ) ? value() : value;
-			if ( value == null ) {
-				value = "";
-			}
-			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
+			// If value is a function, invoke it and use its return value
+			var value = jQuery.isFunction( valueOrFunction ) ?
+				valueOrFunction() :
+				valueOrFunction;
+
+			s[ s.length ] = encodeURIComponent( key ) + "=" +
+				encodeURIComponent( value == null ? "" : value );
 		};
 
 	// Set traditional to true for jQuery <= 1.3.2 behavior.