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Ensured that arrays are not considered same as plain object on deep extending. Fixes #5991.

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Robert Katic 2010-01-30 19:50:49 +01:00 • committed by jeresig
parent 2f603359fe
commit 694b625c92
2 changed files with 11 additions and 7 deletions
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15
src/core.js
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@ -306,7 +306,7 @@ jQuery.fn.init.prototype = jQuery.fn;
jQuery.extend = jQuery.fn.extend = function() {
// copy reference to target object
var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy;
var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy, copyIsArray;
// Handle a deep copy situation
if ( typeof target === "boolean" ) {
@ -340,10 +340,15 @@ jQuery.extend = jQuery.fn.extend = function() {
continue;
}
// 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) ? [] : {};
// Recurse if we're merging plain objects or arrays
if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
if ( copyIsArray ) {
copyIsArray = false;
clone = src && jQuery.isArray(src) ? src : [];
} else {
clone = src && jQuery.isPlainObject(src) ? src : {};
}
// Never move original objects, clone them
target[ name ] = jQuery.extend( deep, clone, copy );