append json objects into json array

Question

I have a form and would like to append the contents of it to an existing array.
I am using JSON.stringify( $('#myForm').serializeObject() ) to convert my form elements into json objects.
The form has user info that i would like to append into myArr then append this list into an existing array.

myArr is populating fine, its just appending that into existingJsonArray i seem to be having problems with.

I saw this but since JSON.stringify creates the full json array would i need to knock out the [{ and }] ?

Is this the correct approach?

var existingJsonArray = [];
var myArr = [];

myArr.unshift( JSON.stringify( $('#myForm').serializeObject() ) );

existingJsonArray.unshift(myArr);

JSON.stringify does not create an object, but a string from an object. — Bergi
– Bergi, Commented Dec 5, 2012 at 20:22
Maybe you should be using JSON.parse, as you seem to have them confused ? — adeneo
– adeneo, Commented Dec 5, 2012 at 20:23
JSON is a string format. It is a string representation of a data structure. There is no such thing as a "JSON object" or a "JSON array". — gen_Eric
– gen_Eric, Commented Dec 5, 2012 at 20:27

Bergi · Accepted Answer · 2012-12-05 20:26:51Z

3

Please notice that JSON is the string representation of objects - and not suited well for manipulating them.

var array = [], // an Array literal in JavaScript code
    formObject;
formObject = $('#myForm').serializeObject(); // an object representing the form
array.unshift([formObject]); // not sure why you need the nested array
// create string containing JSON representation of the array:
var jsonString = JSON.stringify(array);

answered Dec 5, 2012 at 20:26

Bergi

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