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How do I overwrite object properties in an array?

I would like to overwrite a certain allOrders[i] with data, similar to how I create a new one. For some reason I can't figure out what to search on.
I have an array of objects allOrders.
I have an object BusinessCard. I take the form fields, serialize() them, clean up the data with a regex, then push the them into an array.
allOrders.push(new BusinessCard(currentOrder.quantity, currentOrder.FullName, currentOrder.Title, currentOrder.CellNumber, currentOrder.OfficeNumber, currentOrder.FaxNumber, currentOrder.EmailAddress, currentOrder.Address, currentOrder.website, currentOrder.price));
I've tried searching for overwriting existing object properties in an array and the likes and haven't figured out what to do here.
My best guess was allOrders[i].push -- but it seems to me that I have to write a new function to replace each property in the object.
Right now I am using(because using serialize() on the form inputs doesn't help me at all:
allOrders[i].quantity = $('#bcQuantity').val();
allOrders[i].fullname = $('#fullName').val();
allOrders[i].title = $('#Title').val();
allOrders[i].cell = $('#CellNumber').val();
allOrders[i].office = $('#OfficeNumber').val();
allOrders[i].fax = $('#FaxNumber').val();
allOrders[i].email = $('#EmailAddress').val();
allOrders[i].address = $('#Address').val();
allOrders[i].website = $('#website').val();
allOrders[i].price = $('#bcCostBeforeCart').text();
There has to be a smarter way to do this. Thank you.
EDIT:
function getFormData(formId) {
var currentForm = '#' + formId;
var currentPrice = $('#bcCostBeforeCart').text();
var currentFormData = $(currentForm).serialize();
var currentFormDataFinal = currentFormData + '&price=' + currentPrice;
return JSON.parse('{"' + decodeURI(currentFormDataFinal.replace(/\+/g, " ").replace(/&/g, "\",\"").replace(/=/g, "\":\"")) + '"}');
}
MEANING i could be using
currentOrder = getFormData('businessCardForm');
then
allOrders[i] = currentOrder;

Seems odd that you would be updating all items with the selector's you're using, but I would wrap up getting the updated order information then, you can run thru a loop.
Depending on your output, as long as it's outputing the respective properties and values of an order object you could just do:
for(int i =0; i < allOrders.length; i++){
var currentFormId = '' // update this for each iteration.
allOrders[i] = getFormData(currentFormId);
}
allOrders[i] = getUpdatedOrder();
function getUpdatedOrder() {
var order = {};
order.quantity = $('#bcQuantity').val();
order.fullname = $('#fullName').val();
order.title = $('#Title').val();
order.cell = $('#CellNumber').val();
order.office = $('#OfficeNumber').val();
order.fax = $('#FaxNumber').val();
order.email = $('#EmailAddress').val();
order.address = $('#Address').val();
order.website = $('#website').val();
order.price = $('#bcCostBeforeCart').text();
return order;
}

Split Javascript String

I've got a javascript string called cookie and it looks like that:
__utma=43024181.320516738.1346827407.1349695412.1349761990.10; __utmz=43024181.1346827407.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmb=43024181.19.10.1349761990; __utmc=43024181; language=en
It could have more ;xxxxxx; but always the entries will be surrounded by ;.
Now i want to split my var into a array and search for the entry "language=xy", this entry should be saved in "newCookie".
Could anyone help me please i'm completly stucked at splitting the var into a array and search for the entry.
Thanks for helping and sharing

var cookie = '__utma=43024181.320516738.1346827407.1349695412.1349761990.10; __utmz=43024181.1346827407.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmb=43024181.19.10.1349761990; __utmc=43024181; language=en;';
var cookie_array = cookie.split(';'); // Create an Array of all cookie values.
// cookie_array[0] = '__utma=43024181.320516738.1346827407.1349695412.1349761990.10'
// cookie_array[1] = '__utmz=43024181.1346827407.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)'
// cookie_array[2] = '__utmb=43024181.19.10.1349761990'
// cookie_array[3] = '__utmc=43024181'
// cookie_array[4] = 'language=en'
var size = cookie_array.length; // Get Array size to prevent doing lookups in a loop.
for (var i = 0; i < size; i++) {
var keyval = cookie_array[i].split('='); // Split into a key value array
// What we're trying to find now.
// keyval[0] = 'language'
// keyval[1] = 'en'
if (keyval[0] == 'language') { //keyval[0] is left of the '='
//write new cookie value here
console.log('Language is set to ' + keyval[1]); // keyval[1] is right side of '='
}
}
Hope this helps ya out.
For more info on the split() method look at split() Mozilla Developer Network (MDN) documentation

Use a simple regexp for this:
var getLanguage = function(cookie){
var re = new RegExp(/language=([a-zA-Z]+);/);
var m = re.exec(cookie);
return m?m[1]:null;
};
var lang = getLanguage('__utma=43024181.320516738.1346827407.1349695412.1349761990.10; __utmz=43024181.1346827407.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmb=43024181.19.10.1349761990; __utmc=43024181; language=en;');
// lang = "en"

Javascript JSON stringify No Numeric Index to include in Data

i am trying to pass non numeric index values through JSON but am not getting the data.
var ConditionArray = new Array();
ConditionArray[0] = "1";
ConditionArray[1] = "2";
ConditionArray[2] = "3";
ConditionArray['module'] = "Test";
ConditionArray['table'] = "tab_test";
var Data = JSON.stringify(ConditionArray);
When i alert the Data Variable it has the Values 1,2 and 3 but module and table are not included. How can this be added so that the whole string is passed.
EDIT : And what if i have some multidimensional elements also included like
ConditionArray[0] = new Array();
ConditionArray[0] = "11";

JSON structure only recognizes numeric properties of an Array. Anything else is ignored.
You need an Object structure if you want to mix them.
var ConditionArray = new Object();

This would be an better approach:
var values = {
array : ["1", "2", "3"],
module : "Test",
table : "tab_test"
};
var data = JSON.stringify(values);

Since javascript array accepts numeric index only. If you want non numeric index,use Object instead.
var ConditionArray = {};
ConditionArray[0] = "1";
ConditionArray[1] = "2";
ConditionArray[2] = "3";
ConditionArray['module'] = "Test";
ConditionArray['table'] = "tab_test";
var Data = JSON.stringify(ConditionArray);
Here is the working DEMO : http://jsfiddle.net/cUhha/

According to the algorithm for JSON.stringfy (step 4b), only the (numeric) indices of arrays are stringified.

This is because Array does not contain your elements.
When you do this:
ConditionArray['module'] = "Test";
You actually add a property to the ConditionArray, not elements. While JSON.stringify converts to string only elements of the ConditionArray. For example:
var arr = new Array;
arr['str'] = 'string';
console.log(arr.length) //outputs 0
You need to use an Object instead of Array

If you change the first line to
var ConditionArray = new Object();
you will achieve the desired outcome.

If for some reason you cannot convert your array into object, for instance you are working on a big framework or legacy code that you dont want to touch and your job is only to add som feature which requires JSON API use, you should consider using JSON.stringify(json,function(k,v){}) version of the API.
In the function you can now decide what to do with value of key is of a specific type.

this is the way how I solved this problem
Where tblItemsTypeform is array and arrange is de index of the array
:
let itemsData = [];
for(var i = 0; i <= this.tblItemsTypeform.length -1;i++){
let itemsForms = {
arrange: i,
values: this.tblItemsTypeform[i]
}
itemsData.push(itemsForms)
}
And finally use this in a variable to send to api:
var data = JSON.stringify(itemsData)

jquery split() issue

Hopefully this is easy for someone.
I have a set of checkboxes with values 1,2,3 etc with the same name attribute (cp_bundle).
I use the following code to get a comma-delimited list of those checkboxes.
var hl_calling_plan_bundle = $('input[name="cp_bundle"]:checked').getCheckboxVal() || "";
jQuery.fn.getCheckboxVal = function(){
var vals = [];
var i = 0;
this.each(function(){
vals[i++] = jQuery(this).val();
});
return vals;
}
if I check the first and third checkboxes, the following will be returned:
1,3
Then, I want to run a test to see whether a particular value (e.g. "3") exists in the the returned variable
But, I can't get past the split of the variable using the following:
var aCallingBundle = hl_calling_plan_bundle.split(",");
This gives the error:
hl_calling_plan_bundle.split is not a function
Any idea what's going on?

hl_calling_plan_bundle is an array. You have to use array operations on it, not string operations.
If you want to know if the value 3 is in the array, then you have to search the array for it. There are many ways to search an array, but since you have jQuery, it's easy to use the .inArray() function:
var index = $.inArray(3, hl_calling_plan_bundle);
if (index != 1) {
// found 3 in the array at index
}
Incidentally, you may want to simplify your function like this:
jQuery.fn.getCheckboxVal = function(){
var vals = [];
this.each(function(){
vals.push(this.value);
});
return vals;
}
or this way:
jQuery.fn.getCheckboxVal = function(){
return(this.map(function(){return(this.value)}).get());
}

split() is a String method, it does not exist on an Array.
When you say the following is returned 1,3, you may be implicitly calling the String's toString() method, which will by default join() the array members with a comma. If you explicitly called toString(), then you could call split(), but that would be an anti pattern.

You don't need to split the string, you can just use RegEx to search:
var str = '1,3,22,5';
/\b1\b/.test(str); // true
/\b2\b/.test(str); // false
/\b3\b/.test(str); // true
/\b5\b/.test(str); // true
/\b22\b/.test(str); // true
Making it a function:
String.prototype.findVal = function(val){
var re = new RegExp('\\b' + val + '\\b');
re.lastIndex = 0;
return re.test(this);
};
str.findVal(2); // false
str.findVal(22); // true

To get the checkboxes:
var cbs = document.getElementsByName('cp_bundle');
To get arrays of all values and the checked values:
var allValues = [];
var checkedValues = [];
for (var i=0, iLen=cbs.length; i<iLen; i++) {
if (cbs[i].checked) checkedValues.push(cbs[i].value);
allValues[i] = cbs[i].value;
}

javascript how to find number of children in an object

is there a way to find the number of children in a javascript object other than running a loop and using a counter? I can leverage jquery if it will help. I am doing this:
var childScenesObj = [];
var childScenesLen = scenes[sceneID].length; //need to find number of children of scenes[sceneID]. This obviously does not work, as it an object, not an array.
for (childIndex in scenes[sceneID].children) {
childSceneObj = new Object();
childSceneID = scenes[sceneID].children[childIndex];
childSceneNode = scenes[childSceneID];
childSceneObj.name = childSceneNode.name;
childSceneObj.id = childSceneID;
childScenesObj .push(childSceneObj);
}

The following works in ECMAScript5 (Javascript 1.85)
var x = {"1":1, "A":2};
Object.keys(x).length; //outputs 2

If that object is actually an Array, .length will always get you the number of indexes. If you're referring to an object and you want to get the number of attributes/keys in the object, there's no way I know to that other than a counter:
var myArr = [];
alert(myArr.length);// 0
myArr.push('hi');
alert(myArr.length);// 1
var myObj = {};
myObj["color1"] = "red";
myObj["color2"] = "blue";
// only way I know of to get "myObj.length"
var myObjLen = 0;
for(var key in myObj)
myObjLen++;