Develop Reference

"Error : Cannot use 'in' operator to search for 'length' in [{"ID":"2","Name":"EAA2"}]" when performing $.each

What ever I do, I keep getting the same error. The only thing I have found that might of helped is the JSON.parse, but I still get the same problem. console log gives data as [{"ID":"2","Name":"EAA2"}]
I split it into two functions as I didn't want to keep going back to the api everytime a user selects/de-selects an option.
I have also tried the following:
Changing vars to lets
Passing data.d from the update to the populate
function populateAvailableAuthorities() {
var list = $('#availableAA');
var data = JSON.parse($('#AAJSON').val());
var auths = $('#tbSelectedAA').val();
list.empty();
$.each(data, function (key, entry) {
if (!~auths.indexOf(entry.ID + ';')) {
list.append($('<option></option>').attr('value', entry.ID).text(entry.Name));
}
});
}
function updateListboxes() {
var teams = '';
let aa = $('#AAJSON');
aa.empty();
$('#cblTeams input:checked').each(function () {
teams += $(this).attr('value') + ',';
});
if (teams.length > 1) {
teams = teams.substr(0, teams.length - 1);
$.ajax({
type: "POST",
url: '<%# ResolveUrl("~/api/Authorities.asmx/FetchByTeam") %>',
data: '{teams: "' + teams + '"}',
dataType: 'json',
contentType: "application/json; charset=utf-8",
success: function (data) {
aa.val(JSON.stringify(data.d));
populateAvailableAuthorities();
}
});
}
}

It would seem that "over-stringifying" is an issue with JSON. If I doubled the JSON.parse or removed the JSON.stringify it all works correctly.
Annoying!!

Get JSON array data by field name

I'm trying to get JSON data by field name like this data.name and it return the desired data, but I have 25 fields in the array and I want to make this dynamically, using data + "." + variable, when I alert it returns [Object object].name, so how I can make it executable?
I tried many ways but all failed, please help me doing this.
$.ajax({
type: "Get",
url: "/Home/Report_Data",
datatype: "json",
dataSrc: "",
contentType: 'application/json; charset=utf-8',
data: {
'Arrnagement': Arrnagement
},
success: function(data) {
var result = getElementsById("LD_name LD_Loan_Type LD_id LD_Full_Name_AR LD_GENDER LD_BIRTH_INCORP_DATE LD_PS_MOTHER_NAME LD_Street_AR LD_TEL_MOBILE LD_EMPLOY_STATUS_D LD_EMPLYRS_Name LD_MARITAL_STATUS LD_PS_PL_OF_BIR_AR LD_wifeName LD_Effective_Interest_Rate LD_Contract_amount LD_Repayment_Amount LD_Sector_name LD_NUM_REPAYMENTS LD_Loan_Maturity LD_Orig_Contract_Date LD_Loan_CCY LD_Arrangement LD_COLLATERAL_TYPE LD_Description LD_COLLATERAL_VALUE LD_COLLATERAL_Currency LD_GUARANTOR_ID LD_NATIONALITY LD_G_Full_Name_En LD_G_DATE_OF_BIRTH LD_G_PLACE_OF_BIRTH LD_G_MOTHER_NAME_EN LD_HOUSING_LOAN_AREA_CLASS LD_HOUSING_PROPERTY_NATURE LD_HOUSING_LOAN_PURPOSE LD_HOUSING_PROPERTY_AREA");
var jid;
for (var i = 0; i < result.length; i++) {
jid = (result[i].id.substring(3));
var resulting = data[0].jid;
alert(resulting);
if (result[i].innerHTML = data[0].jid != "undefined") {
result[i].innerHTML = data[0].jid;
} else {
result[i].innerHTML = "";
}
}
//jid = name;
//data[0].name returns "Joun"
//data[0]+"."+jid returns [object object].name but i need it to return "Joun"

This should work. I changed the dot notation while accessing the object property.
$.ajax({
type: "Get",
url: "/Home/Report_Data",
datatype: "json",
dataSrc: "",
contentType: 'application/json; charset=utf-8',
data: { 'Arrnagement': Arrnagement },
success: function (data) {
var result = getElementsById("LD_name LD_Loan_Type LD_id LD_Full_Name_AR LD_GENDER LD_BIRTH_INCORP_DATE LD_PS_MOTHER_NAME LD_Street_AR LD_TEL_MOBILE LD_EMPLOY_STATUS_D LD_EMPLYRS_Name LD_MARITAL_STATUS LD_PS_PL_OF_BIR_AR LD_wifeName LD_Effective_Interest_Rate LD_Contract_amount LD_Repayment_Amount LD_Sector_name LD_NUM_REPAYMENTS LD_Loan_Maturity LD_Orig_Contract_Date LD_Loan_CCY LD_Arrangement LD_COLLATERAL_TYPE LD_Description LD_COLLATERAL_VALUE LD_COLLATERAL_Currency LD_GUARANTOR_ID LD_NATIONALITY LD_G_Full_Name_En LD_G_DATE_OF_BIRTH LD_G_PLACE_OF_BIRTH LD_G_MOTHER_NAME_EN LD_HOUSING_LOAN_AREA_CLASS LD_HOUSING_PROPERTY_NATURE LD_HOUSING_LOAN_PURPOSE LD_HOUSING_PROPERTY_AREA");
var responseData = data[0];
var jid;
for (var i = 0; i < result.length; i++) {
jid = (result[i].id.substring(3));
var resulting = responseData[jid];
alert(resulting);
if (responseData[jid]) {
result[i].innerHTML = responseData[jid];
}
else {
result[i].innerHTML = "";
}
}

Try giving data[0][jid], we can give a variable in brackets also inorder to get the data
Hope it works

If do foo.bar you are getting a property with the name 'bar' on object foo. If you have some variable const bar = "qux" and you want to access property on some object with the same name as bar value /"qux"/ you just need to use square brackets - foo [bar], which will be the same as calling foo.qux; So, in your case you just need to use data[0][jid] instead of data [0].jid, supposing jid contains a string that is also a key in data[0].

You can just do data[0][variableName] and this will return the data you want. for example. If data had a json string [{ "Name" : "Jane Doe"}] You could execute it like this.
var variableName = "Name";
console.log(data[0][variableName])
This would return "Jane Doe".
if you have your field names in an array you can loop through them using $.each or a for loop.
For example say your json string is [{"First_Name" : "Jane", "Last_Name" : "Doe", "Age" : 32}] you could get all the values from the json string doing this.
var FieldNames = ["First_Name" , "Last_Name", "Age"]
$.each(FieldNames, function(i,item) {
console.log(data[0][item])
}
OR
var FieldNames = ["First_Name" , "Last_Name", "Age"]
for(var i = 0; i < FieldNames.length; i++) {
console.log(data[0][FieldNames[i]])
}

Add Property dynamically to the JSON array

I would like to two add property Id and ButtonId to the exisiting json result. I have pasted the below js code for reference and I would like to pass the jsonresult to MVC controller. As of now it returns null. please help to proceed. Thanks.
my final result should look like this
json{"Groups":{"Id":"2","ButtonId":"1142","1186","1189"},
{"Id":"3","ButtonId":"1171","1173","1174","1175","1176","1187"},
{"Id":"4","ButtonId":"1177","1178","1179"}} etc..
var btnlist = {Groups: {Id:"", ButtonId: ""}};
$.each($(".buttonData"), function (index, value) {
var values = value.id.split(':');
grpid = values[0].split('-')[1];
btnid = values[1].split('-')[1];
console.log('grpid=' + grpid + ' btnid=' + btnid);
if (typeof (btnlist['Groups'][grpid]) == 'undefined') {
btnlist['Groups'][grpid] = [];
}
btnlist['Groups'][grpid].push(btnid);
});
$.ajax({
type: "POST",
url: "#Url.Action("Home", "Menu")",
dataType: "json",
contentType: "application/json; charset=utf-8",
data: JSON.stringify(btnlist) ,
success: function (result) {
console.log('json' + JSON.stringify(btnlist));
console.debug(result);
},
error: function (request, error) {
console.debug(error);
}
});
This is the json result before pushing into the multidimensional array
The json result, where the properties Id and ButtonId is inserted behind.
null result passed to the controller

With assistance of my colleague, the desired output is as below. This is for other programmers who face similar issue with JSON array. Thanks.
var btnlist = [];
btngrps = $('.btn-sort-container');
$.each(btngrps, function(k, v) {
btnarr = {};
gid = $(this).attr('id');
grpid = gid.split('-')[1];
btnarr.Id = gid.split('-')[1];
btnobjs = $(v).find('.buttonData');
if (btnobjs.length) {
btnarr['btnId'] = [];
$.each(btnobjs, function(bk, bv) {
btnid = $(bv).attr('id').split('-')[2];
btnarr['btnId'].push($(bv).attr('id').split('-')[2]);
});
console.debug(btnarr);
btnlist.push(btnarr);
}
});
console.debug(btnlist);
Output on console
: http://i.stack.imgur.com/oJ3Dy.png

jQuery : update the database with all of the data from the ajax-request

am trying to update database.
For that iam doing like this
From js code
var data = {
"jobid": $('#jobid').val(),
"names": $('#names').val(),
"scripttype": $('#testscripts').val()
};
var msg="";
for(i = 1; i <=4; i++) {
data["Param" + i + "Key"] = $('#key' + i).val();
data["Param" + i + "Value"] = $('#value' + i).val();
}
$.ajax({
type: 'post',
url: "/save",
dataType: "json",
data: data
});
in node.js side
jobsCollection.update({
_id: id
}, {
$set: {
names: record.names,
script: record.scripttype,
// i dont know what should i place in this part???
// i have to set paramkey and paramValues
}
},
{
upsert: true
},
function (err, result) {
if (!err) return context.sendJson([], 404);
});
in record.names and record.scripttype getting proper values.
I don't know how to set values got from the for loop for updating
request going
Request: /save
{ jobid: '',
names: 'first',
scripttype: 'fow',
Param1Key: '1',
Param1Value: 'oneeeeee',
Param2Key: '2',
Param2Value: 'twoooooooo'
etc........
............
}

Since the property names are dynamic, you'll need to use the indexer-style property accessor of JavaScript as shown below.
Just reverse the process basically. I'm not sure where the data is located at the point you're calling update, so I called it sourceData in the example below;
// create an object with the well known-property names
var set = {
names : record.names,
script : record.scripttype
};
// now loop through the params and set each one individually
for(i = 1; i <=4; i++) {
var key = "Param" + i + "Key"; // build a key string
set[key] = sourceData[key]; // grab the data and set it
key = "Param" + i + "Value"; // and repeat
set[key] = sourceData[key];
}
then, pass it to your update:
jobsCollection.update({
_id: id
}, {
$set: set // pass the object created above
}, /* etc. */
If you don't know the count of Params, you could:
send it
use instead for .. in to loop through all the properties
For #2:
for(var key in sourceData) {
// you could filter the property names here if you'd like
// (like if only Params# were important)
set[key] = sourceData[key];
}

json get field name

I want to push the Field Names into the option value and the result into the text of a select. It should look like this:
<select id="ddl_fields">
<option value="RoleId">e407d28a</option>
<option value="RoleName">Sales</option>
</select>
This is the json object returned from the database:
"[{"RoleId":"e407d28a","RoleName":"Sales"}]"
This is the code and it pulls back a valid result:
function getFields(){
var the_id = $(".hid_ID").val();
var jsonText = JSON.stringify({ id: the_id });
$.ajax({
type: "POST",
url: "bc_Admin.aspx/getFields",
data: jsonText,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (data) {
if (data.d != "0") {
var obj = $.parseJSON(data.d);
//what needs to change???
$.each(obj, function (index, value) {
$('#ddl_fields')
.append($("<option value=" + value.id_Role + ">" + value.RoleName + "</option>"));
});
}
} //end success
});
}
Similar to this questions but need a JQuery solution.
How to get/list all field names of a JSON data with ExtJS?
Thanks!

Assuming that data.d is in the format you posted obj is an array and you want to iterate the object in the array and not the array itself.
$.each(obj[0], function (index, value) {
$('#ddl_fields')
.append($("<option value=" + index + ">" + value + "</option>"));
});

You have to iterate through the keys of the object, and use hasOwnProperty to make sure its a key of the object and not of its prototype.
var key, keys = [];
for (key in obj) {
if (obj.hasOwnProperty(key))
keys.push(key)
}

You'll want to loop through the object and use hasOwnProperty().
for (var i in inputData) {
if (inputData.hasOwnProperty(i)) {
console.log(i + " , " + inputData[i]);
}}
This example will just log to console key: value.
https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/hasOwnProperty

Just change
$.each(obj, function (index, value) {
to
$.each(obj[0], function (index, value) {
The problem is that you return an array in your json

Not sure if I understand, but here's what I would do to get what you want (I made also your code simplier):
function getFields(the_id){
$.ajax({
type: "POST",
url: "bc_Admin.aspx/getFields",
data: { id : the_id },
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (data) {
for(var i = 0; i < data.length; i++){
console.log(i + ": " + data[i]);
}
},
error : function(s , i , error){
console.log(error);
}
});
}