jQuery.extend may not work well, when a boolean value is not specified at the first argument.

[turbo@…]

In jQuery 1.6.4, jQuery.extend may not work well, when a boolean value is not specified at the first argument.

1) jQuery.extend(target, obj1) 2) jQuery.extend(false, target, obj1)

I expect the same object will be returned both 1) and 2). But 1) and 2) sometimes return the dirrent objects.

At line 328 of jquery-1.6.4.js, there is "target = arguments[0]

{}". When argument[0] value is false, target is set to {}.

Then "target = arguments[1]

{};" and "i = 2;" at line 336-338 will not be processed, because "if ( typeof target === "boolean" )" at line 334 will not be true.

[gibson042]

Duplicate of #10867.

[timmywil]

Duplicate of #10867.