jQuery.extend() deep destroys array of zero

jQuery.extend(true, {plop:[]}, {plop:[0]})

returns an object where plop is an empty array.

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Change History (2)

It appears this is a coersion problem. In jQuery.extend there is a section

// Prevent never-ending loop
if ( target == prop[i] )
  continue;

Coersion says that [] is false and 0 is false. So they are equal. This test should probably use === instead.

resolution:	→ fixed
status:	new → closed

Fixed in [3841].

Note, the code treats all objects the same with no special handling for Arrays at this point.

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