CODEWITHSUNDEEP
javascriptarraysjson
b85411
b85411

Reputation: 10000

Javascript - push into JSON array

Just trying to update a JSON array and hoping for some guidance.

var updatedData = { updatedValues: [{a:0,b:0}]};    
updatedData.updatedValues.push({c:0});

That will give me:

{updatedValues: [{a: 0, b: 0}, {c: 0}]}

How can I make it so that "c" is part of that original array? So I end up with {a: 0, b: 0, c: 0} in updatedValues?

Upvotes: 3

Views: 2149

Answers (4)

Anonymous Duck
Anonymous Duck

Reputation: 2978

You can add an item in the object. This should work.

updatedData.updatedValues[0]['c']=0;

Upvotes: 1

TimoStaudinger
TimoStaudinger

Reputation: 42460

You actually have an object inside your array.

updatedData.updatedValues[0].c = 0;

will result in your desired outcome.

Upvotes: 5

Luke
Luke

Reputation: 1724

You're pushing something to the updated values array, rather than setting an attribute on the 0th element of the array.

updatedData.updatedValues[0].c = 0;

Upvotes: 1

Madhu
Madhu

Reputation: 2551

The updatedValues is a plain object and you have to add c as property.

var updatedData = { updatedValues: [{a:0,b:0}]};    
updatedData.updatedValues[0]["c"] = 0;

If you are using jquery then do as follows.

var updatedData = { updatedValues: [{a:0,b:0}]};    
$.extend(updatedData.updatedValues[0],{c:0});

Upvotes: 1

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