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how can i convert my data in javascript server side to json object and array?

i'm working with xpages and javascript server side i want to convert the fields in format json then i parse this dat and i put them in a grid,the problem is that these fields can contains values :one item or a list how can i convert them in json ?
this is my code :
this.getWFLog = function ()
{
var wfLoglines = [];
var line = "";
if (this.doc.hasItem (WF.LogActivityPS) == false) then
return ("");
var WFLogActivityPS = this.doc.getItem ("WF.LogActivityPS");
var WFActivityInPS = this.doc.getItem ("WFActivityInPS");
var WFActivityOutPS = this.doc.getItem ("WFActivityOutPS");
var WFLogDecisionPS = this.doc.getItem ("WF.LogDecisionPS");
var WFLogSubmitterPS = this.doc.getItem ("WF.LogSubmitterPS");
var WFLogCommentPS = this.doc.getItem ("WF.LogCommentPS");
var WFLogActivityDescPS = this.doc.getItem ("WF.LogActivityDescPS");
var Durr =((WFActivityOutPS-WFActivityInPS)/3600);
var json= {
"unid":"aa",
"Act":WFLogActivityPS,
"Fin":WFActivityOutPS,
"Durr":Durr,
"Decision":WFLogDecisionPS,
"Interv":WFLogSubmitterPS,
"Instruction":WFLogActivityDescPS,
"Comment":WFLogCommentPS
}
/*
*
* var wfdoc = new PSWorkflowDoc (document1, this);
histopry = wfdoc.getWFLog();
var getContact = JSON.parse(histopry );
*/ }

Careful. Your code is bleeding memory. Each Notes object you create (like the items) needs to be recycled after use calling .recycle().
There are a few ways you can go about it. The most radical would be to deploy the OpenNTF Domino API (ODA) which provides a handy document.toJson() function.
Less radical: create a helper bean and put code inside there. I would call a method with the document and an array of field names as parameter. This will allow you to loop through it.
Use the Json helper methods found in com.ibm.commons.util.io.json they will make sure all escaping is done properly. You need to decide if you really want arrays and objects mixed - especially if the same field can be one or the other in different documents. If you want them flat use item.getText(); otherwise use item.getValues() There's a good article by Jesse explaining more on JSON in XPages. Go check it out. Hope that helps.

If an input field contains several values that you want to transform into an array, use the split method :
var WFLogActivityPS = this.doc.getItem("WF.LogActivityPS").split(",")
// input : A,B,C --> result :["A","B","C"]

JQuery - How to loop through JSON using each

I have cached the JSON returned from an Ajax call and need to loop through this to display it. I get the error, 'Cannot read property 'title' of undefined'. Can anyone help?
$.each(cache['cat-'+cat], function(i, jd) {
var title= jd.title; //issue is here
)}
When I console.log(cache['cat-'+cat]) I get the below:
Object {
date: "2016-07-28T15:08:03.596Z",
data: '[{"id":471,"title":"Lines and Calls","solution_areas":"lines-calls"}]'
}
When I console.log(jd) within the loop I get the below:
2016-07-28T15:13:14.553Z
if I use console.log(jd.data); I get
undefined
I have tried the below but they don't work either:
var title= jd.data.title;
var title= jd.data[0].title;
Can anyone tell me what I am doing wrong?

The way you are currently using it, each is going to iterate over every property of the cache['cat-'+cat] object, of which there are two, date and data.
So your anonymous function function(i, jd)will be called twice. The first time, jdwill be the value of the date property (a string), the second time it will be the value of the data property (also a string, that happens to be formatted as JSON).
The contents of data need to be parsed before they can be accessed as an object/array, and given that data is formatted as an array, I am guessing that you actually want to iterate over that. Given the example provided, I would change it to:
$.each(JSON.parse(cache['cat-'+cat].data), function(i, jd) {
var title= jd.title;
});

You aren't accessing it properly. And since cache['cat-'+cat] is already the needed object, what's the purpose of $.each? Should be
var title= JSON.parse(cache['cat-'+cat].data)[0].title;
(because the title is in the data, and the data is JSON).
Demo:
var obj = {
date: "2016-07-28T15:08:03.596Z",
data: '[{"id":471,"title":"Lines and Calls","solution_areas":"lines-calls"}]'
};
var title= JSON.parse(obj.data)[0].title;
console.log(title);

Just need to understand what is JSON and what is STRING
cache['cat-'+cat].data return a string that need to convert to JSON before pass to each loop:
var dataCacheReturned = cache['cat-'+cat];
var objCache = dataCacheReturned.data; //Its return a string
objCache = JSON.parse(objCache); //Parse string to json
$.each(objCache, function(i, jd) {
var title = jd.title;
console.log(title);
});

Meteor - move data from one collection to another

I'm trying to move Mongo document from one collection to another and I can't get it to work (in server method):
var oldData = newCollection.findOne({name: name});
if(oldData){
console.log(oldData); // this works
oldCollection.insert({oldData}); // this doesn't
}
Another way:
var oldData = newCollection.findOne({name: name});
if(oldData){
console.log(oldData.score); // this works
oldCollection.insert({
score: oldData.score
}); // this doesn't
What's wrong here?

You shouldn't need the curly brackets in option 1 - oldCollection.insert(oldData)

How to replace ' / ' with '-' inside ObservableArray ? Knockout js

Well i am trying to pass an observable array via ajax call to my controller but i get every value there except date . i get something like '01-01-01' etc .
I found the issue but unable to fix that as i dont know how to replace / with - .
My ObservableArray have around 10 list items each list item holds a many properties out of those startDate holds the date like ("23/10/2014") . i just need something like ("23-10-2014") .
Tought of posting my function's and more i hope thats not required in this case i believe .
Let me explain with bit of code and sample data :
function myarray()
{
var self=this;
self.startDate=ko.observable("");
self.name=ko.observable("");
self.place=ko.observable("");
}
MyObservableArray :
self.Main= ko.observableArray();
In between i do some stuff to load Data into self.Main and i am sending self.Main to controller having data like below :
self.Main[0] holds :
startDate() -->gives you "23/10/2014" //individual observables inside onservable array
name() --> "jhon"
place()--> "croatia"
Likely
self.Main[9] holds :
startDate() --> "29/05/2012"
name() --> "pop"
place()--> "usa"
I am trying like i want to alter the self.Main() and replace the startDate and use the same self.Main to send to my controller . Once after replacing in self.Main when i check date the / should be replaced with - .
Possible solution : i can use a different observable array and push all the VM's of Main into it but i am trying to do on self.Main without using other .
If someone can show some light it is much appreciated .

What I got that you are facing problem in escaping / in replace.
Try this
"(23/10/2014)".replace(/\//g,"-") //returns "(23-10-2014)"
I tried something for you using simple JS
var arr = [{date:"(23/10/2014)"},{date:"(23/10/2014)"},{date:"(23/10/2014)"},{date:"(23/10/2014)"}];
arr.forEach(function(obj){obj.date = obj.date.replace(/\//g,"-")});
console.log(arr) //will print date field as "(23-10-2014)" for all objects.

One solution would be to add a computed value that returns the array with the right values.
self.Main = ko.observableArray([...values here...]);
self.MainComputed = ko.computed(function() {
var computedArray = [];
self.Main().forEach(function(item) {
var newItem = myarray(); //Create a new item.
newItem.name(item.name());
newItem.place(item.place());
newItem.startDate(item.startDate().replace(/\//g,"-"));
computedArray.push(newItem);
});
return computedArray;
});
Then use the computed value in the places where you need the values with -.
I can think of two other ways to solve your issue, when taken into account that you want to use self.Main:
Replace the / with - before setting startDate on your item.
Change startDate to a computed value while storing the original value in another variable.
The first solution should be pretty straight forward (provided that it is a valid solution).
The second solution would look something like this:
function myarray()
{
var self=this;
self.originalStartDate = ko.observable("");
self.name = ko.observable("");
self.place = ko.observable("");
self.startDate = ko.computed(function() {
if(self.originalStartDate()) {
//We can only replace if the value is set.
return self.originalStartDate().replace(/\//g,"-");
}
else {
//If replace was not possible, we return the value as is.
return self.originalStartDate();
}
});
}
Now when you set the values you do something like:
var item = myarray();
item.originalStartDate = "01/01/2014";
Then when you get the value of startDate you would get "01-01-2014".

I haven't used Knockout.js but you can do this with a Javascript replace:
var str = [your array value] ;
var res = str.replace("/", "-");
For more information:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace

Model Bind to a List<> when Posting JavaScript Data Object

I'm trying to post a JavaScript data object with the following:
$.post(frm.attr("action"), data, function(res)
{
// do some stuff
}, "json");
where 'data' takes the structure of
data
- panelId
- siteId
- ConfiguredFactsheetId // this is an array of CheckBox ids that correspond to ConfiguredFactsheets
- 123
- 234
- 345
With this, both site & panel are correctly instantiated & bound with their data but the List object is null.
public JsonResult Edit(Site site, Panel panel, List<ConfiguredFactsheet> configuredFactsheets)
{
// do stuff
return Json(success);
}
Now, I realise that my 'data' object's ConfiguredFactsheetId property is just an array of id values. Do I need to specify that each value corresponds to a configuredFactsheetId property of my ConfiguredFactsheet object? If so, my data object would take a form similart to
data
- panelId
- siteId
- ConfiguredFactsheet // this is an array of CheckBox ids that correspond to ConfiguredFactsheets
- ConfiguredFactsheetId:123
- ConfiguredFactsheetId:234
- ConfiguredFactsheetId:345
but this obviously won't work because every time I add a new ConfiguredFactsheetId to the object, it'll just overwrite the previous one.
I know I can do this if I built a query string of the form
"&ConfiguredFactsheet[i].configuredFactsheetId = " + configuredFactsheetId;
but I'd like to contain everything in a single data object
Any suggestions? Do I need to explain anything (probably everything!) more clearly?
Thanks
Dave

In the end, this worked:
var valuesArray = objCheckBoxes.map(function()
{
return $.getAttributes($(this));
});
var obj = new Array();
$.each(valuesArray, function(item) { obj.push($(this)[0]); });
$.each(obj, function(i)
{
// basically I take the rule where you need to append
// the index to the type, and I apply it here.
data["configuredFactsheets[" + i + "].configuredFactsheetId"] = $(this).attr("configuredFactsheetId");
});
Note: read about $.getAttributes

An alternative is to post:
?myValues=1&myValues=2&myValues=3
And accept it as an IEnumerable
public ActionResult DoSomething(IEnumerable<int> myValues) {
...