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Javascript Data Type Q&A » object » key 

1. Using variable keys to access values in JSON objects    stackoverflow.com

The code:

function updateDashboardData() {
    $.getJSON("includes/system/ajaxDataInterface.php", {recordcount:1}, function(data) {
     $('.stationContainer').each(function(data) {
      var bsID = $(this).attr("id");
      ...

2. Creating new JSON objects by accessing variable keys within another JSON object    stackoverflow.com

I'm trying to take an existing JSON object and create smaller JSON chunks out of it specific for creating separate graphs. Here is my code which uses jQuery:

function updateStationGraphs (bsid) {
 ...

3. How come setting value in one array key is setting in another key?    stackoverflow.com

I have an array of objects with various objects within to hold UI values. I wanted to have a button so that element 0's values are replicated through the whole array. ...

4. Javascript Multi-level array of JSON objects - how to access key-value pair in second level or higher    stackoverflow.com

Consider the following array of JSON objects:

myList = [
    {title:"Parent1",
        children:[{childname:"Child11"},
           ...

5. How to use a variable value for the key of another object?    stackoverflow.com

I have something like :

var myMenu= [
  {
    'My English Title':function(menuItem,menu) 
                ...

6. How to create a dynamic key to be added to a javascript object variable    stackoverflow.com

I'm trying something like this, but this example does not work.

jsObj = {};

for (var i = 1; i <= 10; i++) {
    jsObj{'key' + i} = 'example ' ...

7. In JavaScript, how can I return a boolean value indicating whether a key is present in a JSON object?    stackoverflow.com

I have a fairly simple question: In Javascript how can I return the boolean (if its found in the JSON) rather than the actual value? Example:

 var myJSON = { 
 ...

8. Renaming object keys(variables) in javascript    stackoverflow.com

I am having an object with variables named [0...10] and few variables with normal names. I delete one of them with delete obj[3]. Then there is a gap in this sequence. ...

9. Javascript Json object, get by value by Key String.. Ex : GetMyVal(MyKeyInString)    stackoverflow.com

I have this json info:

data.ContactName
data.ContactEmal
data.Departement
I Would like to have a function like that
function GetMyVal(myStringKey)
{
   $.Ajax
         ,... 
   ...

10. How do I interpolate a variable as a key in a Javascript object?    stackoverflow.com

If I have:

var a = "whatever";
var b = {a : 20};
alert(b["a"]); // shows 20
How can I insert the value of the variable a as a key, and not the string "a" ...

11. Can I get a javascript object property name that starts with a number?    stackoverflow.com

var myObj = {"suppliers":[{"name":"supplier1","12m":"0.08","24m":"0.06"}]};

alert(myObj.suppliers[0].12m);
Is there a different way to get this property, or should I just not use a key that starts with a number?

12. Keys in Javascript objects can only be strings?    stackoverflow.com

jshashtable states:

JavaScript's built-in objects do provide hashtable functionality using the square brackets notation for properties, provided your keys are strings or numbers:
From what I know, keys ...

13. Add property to object with key in Javascript    stackoverflow.com

I have a simple code like this:

var name = 'line1';
var obj = {};
obj.name = [0, 1];
console.log(obj);
Key of property is name. But i want to make key='line'; Can you help me?

14. Object with complex keys    stackoverflow.com

I have array of keys:

var keys = ['key1', 'key2', 'key3'];
How can I create such object in a simplest way?
var object = { 'key1' : { 'key2' : {'key3' : 'value' }}}
...

15. Finding the number of key's in an object    stackoverflow.com

var values = [{
    'SPO2': 222.00000,
    'VitalGroupID': 1152,
    'Temperature': 36.6666666666667,
    'DateTimeTaken': '/Date(1301494335000-0400)/',
    'UserID': 1,
   ...

16. How can i find the total number of keys if the Object is inside an array    stackoverflow.com

var array = [{key:value,key:value}]
How can i find the total number of keys if it's an array of Object. When i do check the length of the array, it gives me one. ...

17. Deleting the keys in an array of object and checking its length    stackoverflow.com

var uniqueProperties = [];    
for (var i = 0, length = obj.length; i < length; i++) {
        for (var prop in ...

18. Making all the keys value in an array of objects blank    stackoverflow.com

How to make all the key's value in an object replace with blank values...

var array = [{key1:'value',key2:'value2'},{'key1:'value',key2:'value2}]

for (item in arrayObj) {
    arrayObj[item] = ' ';   ...

19. Deleting specific keys from an array of object    stackoverflow.com

var arrayObjects = [{key1:'value',key2:'value2'},{'key1:'value',key2:'value2}]

for(i = 0; i <arrayObjects.length; i++) {
    for (key in arrayObjects[i]) {
          delete key1; // Delete ...

20. Removing unwanted keys from my array of objects    stackoverflow.com

My Object How to remove keys like UserID, UserName from it... i mean selected keys... delete operator is not working in my case.

for (i=0 i <obj.length; i ++) {
  ...

21. Changing the key name in an array of objects?    stackoverflow.com

How can i change the key name in an array of objects?

var arrayObj = [{key1,'value1', key2:'value2'},{key1,'value1', key2:'value2'}];
Suppose if i have to change all the key1 name into stroke. What should i ...

22. Realiable mergin two JavaScript objects and altering their key names    stackoverflow.com

This is not so much a question as a request for comments. I have two objects, and I want to merge them together, taking the values of the second, and merging with ...

23. array of object having an another key,value in another object    stackoverflow.com

I have a situation where i have array of objects...

array[0] = {key:value,key1:value}
array[1] = {key:value,key1:value}
array[2] = {key:value,key1:value}
array[3] = {key:value,key1:value}
Now i want to associate array[0] to another array of object {key,value} let's ...

24. Javascript array - how to handle multiple array items with same key/name?    stackoverflow.com

I have a javascript array like this (end result):

Array(
   [text_vars] => Array(
      [0] => 'xxxxxx',
      [1] => 'xxxxxx'
  ...

25. Sorting arrays in javascript by object key value    stackoverflow.com

How would you sort this array with these objects by distance. So that you have the objects sorted from smallest distance to biggest distance ?

Object { distance=3388, duration="6 mins", from="Lenchen Ave, ...

26. Set object key to value of variable - why have two different ways?    stackoverflow.com

In JavaScript, if you have the following code:

  var map_id = 100;
  var myobj = {};
  myobj[map_id] = 6;
  var myobj2 = { map_id : 6 ...

27. Sorting array using multiple keys of an object and custom sort logic    stackoverflow.com

I have an object that looks like:

var object = [
    {"begin":0,  "end":20}, 
    {"begin":30, "end":300},
    {"begin":40, "end":60}, 
    ...

28. Array/Object key    forums.devshed.com

I have a JSON object which I am manipulating in jQuery. I was wondering how I could retrieve the key of a specific item within the object. I have seen examples of this using for loops, but I just have a single value I want to retrieve. Any methods available in JS to retrieve that key?

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