jquery core: Closes #5189. Added a generic function to handle getting/setting...

jquery core: Closes #5189. Added a generic function to handle getting/setting key-value/setting a hash.

src/attributes.js

 jQuery.fn.extend({
 	attr: function( name, value ) {
-		var elem, options, isFunction = jQuery.isFunction(value);
-
-		if ( typeof name === "string" ) {     // A single attribute
-			if ( value === undefined ) {        // Query it on first element
-				return this.length ?
-					jQuery.attr( this[0], name ) :
-					null;
-			} else {                            // Set it on all elements
-				for ( var i = 0, l = this.length; i < l; i++ ) {
-					elem = this[i];
-					if ( isFunction )
-						value = value.call(elem,i);
-					jQuery.attr( elem, name, value );
-				}
-			}
-		} else {                              // Multiple attributes to set on all
-			options = name;
-			for ( var i = 0, l = this.length; i < l; i++ ) {
-				elem = this[i];
-				for ( name in options ) {
-					value = options[name];
-					if ( jQuery.isFunction(value) )
-						value = value.call(elem,i);
-					jQuery.attr( elem, name, value );
-				}
-			}
-		}
-
-		return this;
+		return access(this, name, value, true, jQuery.attr);
 	},
 
 	addClass: function( value ) {

src/core.js

@@ -553,6 +553,30 @@ function evalScript( i, elem ) {
 	}
 }
 
+function access( elems, key, value, exec, fn ) {
+	var l = elems.length;
+	
+	if ( typeof key === "object" ) {
+			for (var k in key) {
+				access(elems, k, key[k], exec, fn);
+			}
+		return elems;
+	}
+	
+	if (value !== undefined) {
+		exec = exec && jQuery.isFunction(value);
+		
+		for (var i = 0; i < l; i++) {
+			var elem = elems[i],
+				val = exec ? value.call(elem, i) : value;
+			fn(elem, key, val);
+		}
+		return elems;
+	}
+	
+	return l ? fn(elems[0], key) : null;
+}
+
 function now() {
 	return (new Date).getTime();
 }

src/css.js

@@ -17,51 +17,17 @@ var rexclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
 	};
 
 jQuery.fn.css = function( name, value ) {
-	var options = name, isFunction = jQuery.isFunction( value );
-
-	if ( typeof name === "string" ) {
-		// Are we setting the style?
-		if ( value === undefined ) {
-			return this.length ?
-				jQuery.css( this[0], name ) :
-				null;
-
-		// Convert name, value params to options hash format
-		} else {
-			options = {};
-			options[ name ] = value;
-		}
+	return access( this, name, value, true, function( elem, name, value ) {
+		if (value === undefined) {
+			return jQuery.css( elem, name );
 		}
 		
-	var isFunction = {};
-	
-	// For each value, determine whether it's a Function so we don't
-	// need to determine it again for each element
-	for ( var prop in options ) {
-		isFunction[prop] = jQuery.isFunction( options[prop] );
+		if ( typeof value === "number" && !rexclude.test(name) ) {
+			value += "px";
 		}
 
-	// For each element...
-	for ( var i = 0, l = this.length; i < l; i++ ) {
-		var elem = this[i];
-
-		// Set all the styles
-		for ( var prop in options ) {
-			value = options[prop];
-
-			if ( isFunction[prop] ) {
-				value = value.call( elem, i );
-			}
-
-			if ( typeof value === "number" && !rexclude.test(prop) ) {
-				value = value + "px";
-			}
-
-			jQuery.style( elem, prop, value );
-		}
-	}
-
-	return this;
+		jQuery.style( elem, name, value );
+	});
 };
 
 jQuery.extend({

test/unit/attributes.js

@@ -2,7 +2,10 @@ module("attributes");
 
 test("attr(String)", function() {
 	expect(27);
+	
+	// This one sometimes fails randomally ?!
 	equals( jQuery('#text1').attr('value'), "Test", 'Check for value attribute' );
+	
 	equals( jQuery('#text1').attr('value', "Test2").attr('defaultValue'), "Test", 'Check for defaultValue attribute' );
 	equals( jQuery('#text1').attr('type'), "text", 'Check for type attribute' );
 	equals( jQuery('#radio1').attr('type'), "radio", 'Check for type attribute' );