Recursively extending as object with another object with an empty array parameter

Reported by:	jasonlfunk@gmail.com	Owned by:
Priority:	undecided	Milestone:	None
Component:	unfiled	Version:	2.0.3
Keywords:		Cc:
Blocked by:		Blocking:

Description

#!js

var obj1 = {'key': {'subkey': 1} }
>> Object {key: Object}

var obj2 = {'key': [] }
>> Object {key: Array[0]}

$.extend(true, obj1, obj2)
>> Object {key: Array[0]}

I would expect the result to still contain the 'subkey' object; instead it is replaced by an empty array.

Attachments (0)

Change History (4)

Changed January 23, 2014 07:31PM UTC by rwaldron comment:1

resolution:	→ notabug
status:	new → closed

This is the correct behaviour, jQuery.extend will not attempt to "merge" an Array and an Object.

Changed January 23, 2014 07:35PM UTC by dmethvin comment:2

This wouldn't be a problem if you'd define an Arrobject in ES7.

Changed January 23, 2014 07:42PM UTC by dmethvin comment:3

On second thought there should also be an Objectray for symmetry.

Changed January 23, 2014 07:44PM UTC by rwaldron comment:4

Replying to [comment:2 dmethvin]:

This wouldn't be a problem if you'd define an Arrobject in ES7.

Replying to [comment:3 dmethvin]: