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-rw-r--r--src/core.js8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/core.js b/src/core.js
index 975d23c0d..58cbbc7e5 100644
--- a/src/core.js
+++ b/src/core.js
@@ -316,10 +316,10 @@ jQuery.extend = jQuery.fn.extend = function() {
continue;
}
- // Recurse if we're merging object literal values
- if ( deep && copy && jQuery.isPlainObject(copy) ) {
- // Don't extend not object literals
- var clone = src && jQuery.isPlainObject(src) ? src : {};
+ // Recurse if we're merging object literal values or arrays
+ if ( deep && copy && ( jQuery.isPlainObject(copy) || jQuery.isArray(copy) ) ) {
+ var clone = src && ( jQuery.isPlainObject(src) || jQuery.isArray(src) ) ? src
+ : jQuery.isArray(copy) ? [] : {};
// Never move original objects, clone them
target[ name ] = jQuery.extend( deep, clone, copy );