From 69f72761faa6878e361711b70f1d27c467d256e4 Mon Sep 17 00:00:00 2001 From: Ariel Flesler Date: Wed, 14 May 2008 19:45:31 +0000 Subject: [PATCH] jquery core: fixed deep extend of objects. Closes #1562 & #2820. --- src/core.js | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/core.js b/src/core.js index 8743f05..98a0dc4 100644 --- a/src/core.js +++ b/src/core.js @@ -579,8 +579,11 @@ jQuery.extend = jQuery.fn.extend = function() { continue; // Recurse if we're merging object values - if ( deep && copy && typeof copy == "object" && src && !copy.nodeType ) - target[ name ] = jQuery.extend( deep, src, copy ); + if ( deep && copy && typeof copy == "object" && !copy.nodeType ) + target[ name ] = jQuery.extend( deep, + // Never move original objects, clone them + src || ( copy.length != null ? [ ] : { } ) + , copy ); // Don't bring in undefined values else if ( copy !== undefined ) -- 1.7.10.4