Find difference of the two objects

Question

Is there any way in underscore.js to get the difference between two objects, tried with _.difference dosen't work. My object is like:

$scope.ABC = {};
$scope.ABC.fruits = {};
$scope.ABC.vegetables = {};
$scope.ABC.fruits.places = [];
$scope.ABC.fruits.type = [];
$scope.ABC.vegetables.places = [];
$scope.ABC.vegetables.type = [];

The id is common for ABC object. now I have another object XYZ same as ABC, but which can have places or types value different from ABC.

Any way I can find the difference between the two.

_.difference(ABC,XYZ) dosen't work.

Please add `XYZ` object and the desired outcome of `difference`. — raina77ow, Sep 23 '15 at 08:47
maybe you could have a look at this thread: http://stackoverflow.com/questions/264430/how-can-i-get-a-list-of-the-differences-between-two-javascript-object-graphs — ShivangiBilora, Sep 23 '15 at 09:03

DonJuwe · Answer 1 · 2015-09-23T12:06:51.227

0

This is what you are looking for: _.contains(list, value, [fromIndex])

Returns true if the value is present in the list. Uses indexOf internally, if list is an Array. Use fromIndex to start your search at a given index.

Now loop _.contains() for every attribute of $scope.ABC and check if it is present in $scope.XYZ. If not, push it e.g. into another array.

Offtopic: I suggest using lodash for various reasons

edited Sep 23 '15 at 12:06

answered Sep 23 '15 at 10:22

DonJuwe

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this returns boolean, whereas my I need to return the difference. – Preena Khanuja Sep 23 '15 at 11:52
I was misunderstanding your question, see updated answer. – DonJuwe Sep 23 '15 at 12:07

Find difference of the two objects

1 Answers1