how to remove property from javascript without loosing it in original object

Question

How to remove property from javascript without loosing it in original object? I mean that I can do like this:

var originalObject = ...;

delete originalObject["Undefined"] and it would remove property originalObject.Undefined, however, I don't want originalObject to be changed. I wish like this:

newObject = removeUndefined(originalObject);

You first need to clone the original object to new and then delete the property from it. — VisioN
– VisioN, Commented Oct 19, 2015 at 10:39
Possible duplicate of What is the most efficient way to clone an object? — Typo
– Typo, Commented Oct 19, 2015 at 10:39
@Typo Then you can use that question as a part of your answer or a comment for this question. — VisioN
– VisioN, Commented Oct 19, 2015 at 10:43

Community · Accepted Answer · 2017-05-23 11:44:46Z

1

From this question you have how to clone the object, as stated in one of the answers "Assuming that you have only variables and not any functions in your object":

you could define:

function removeUndefined(originalObject){

    var newObject = JSON.parse(JSON.stringify(originalObject));
    delete newObject['Undefined'];
    return newObject;
}

So later you could call:

newObject = removeUndefined(originalObject);

edited May 23, 2017 at 11:44

CommunityBot

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answered Oct 19, 2015 at 10:52

Typo

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