Backing out commit 81bfd9b870f658ce00eec48ea48a84d69c20bf05, read the ticket incorrec...

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index 3b11ed8..6eeb9a6 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -39,6 +39,7 @@ var jQuery = function( selector, context ) {
 
        // Save a reference to some core methods
        toString = Object.prototype.toString,
+       hasOwnProperty = Object.prototype.hasOwnProperty,
        push = Array.prototype.push,
        slice = Array.prototype.slice,
        indexOf = Array.prototype.indexOf;
@@ -222,7 +223,7 @@ jQuery.fn = jQuery.prototype = {
        },
 
        is: function( selector ) {
-               return !!selector && jQuery.multiFilter( selector, this ).length > 0;
+               return !!selector && jQuery.filter( selector, this ).length > 0;
        },
 
        // For internal use only.
@@ -323,7 +324,17 @@ jQuery.extend({
        },
 
        isObject: function( obj ) {
-               return this.constructor.call(obj) === Object;
+               if ( toString.call(obj) !== "[object Object]" ) {
+                       return false;
+               }
+               
+               //own properties are iterated firstly,
+               //so to speed up, we can test last one if it is own or not
+               
+               var key;
+               for ( key in obj ) {}
+               
+               return !key || hasOwnProperty.call( obj, key );
        },
 
        isEmptyObject: function( obj ) {
@@ -444,43 +455,13 @@ jQuery.extend({
                // expando of getElementsByTagName
                var i = 0, elem, pos = first.length;
 
-               // Also, we need to make sure that the correct elements are being returned
-               // (IE returns comment nodes in a '*' query)
-               if ( !jQuery.support.getAll ) {
-                       while ( (elem = second[ i++ ]) != null ) {
-                               if ( elem.nodeType !== 8 ) {
-                                       first[ pos++ ] = elem;
-                               }
-                       }
-
-               } else {
-                       while ( (elem = second[ i++ ]) != null ) {
-                               first[ pos++ ] = elem;
-                       }
+               while ( (elem = second[ i++ ]) != null ) {
+                       first[ pos++ ] = elem;
                }
 
                return first;
        },
 
-       unique: function( array ) {
-               var ret = [], done = {}, id;
-
-               try {
-                       for ( var i = 0, length = array.length; i < length; i++ ) {
-                               id = jQuery.data( array[ i ] );
-
-                               if ( !done[ id ] ) {
-                                       done[ id ] = true;
-                                       ret.push( array[ i ] );
-                               }
-                       }
-               } catch( e ) {
-                       ret = array;
-               }
-
-               return ret;
-       },
-
        grep: function( elems, callback, inv ) {
                var ret = [];