i'm not quite sure what a jag is - but you can use JSON.stringify() to convert an array of pairs or values into a JSON object

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify

JSON.stringify(array) 

You can use Array#reduce method.

var res = arrayList
  // iterate over the array
  .reduce((obj, o) => {
    // define property 
    obj[o.name] = o.value;
    // return the object
    return obj;
    // set initial value as an empty object
  }, {})

var arrayList = [{
    name: "01",
    value: "3424234234"
  },
  {
    name: "17",
    value: "26021734"
  },
  {
    name: "10",
    value: "435345"
  },
  {
    name: "21",
    value: "3453"
  }
];

var res = arrayList.reduce((obj, o) => {
  obj[o.name] = o.value;
  return obj;
}, {})

console.log(res)

Same with ES6 object destructuring.

var res = arrayList.reduce((obj, { name, value }) => {
  obj[name] = value;
  return obj;
}, {})

var arrayList = [{
    name: "01",
    value: "3424234234"
  },
  {
    name: "17",
    value: "26021734"
  },
  {
    name: "10",
    value: "435345"
  },
  {
    name: "21",
    value: "3453"
  }
];

    

console.log(res)

One-liner solution with spread syntax :

var res = arrayList.reduce((obj, { name, value }) => ({ [name] : value, ...obj }), {})

Or

var res = arrayList.reduce((obj, { name, value }) => (obj[name] = value, obj ), {})

Script for backward-compatibility: https://github.com/douglascrockford/JSON-js/blob/master/json2.js

And call:

var myJsonString = JSON.stringify(yourArray);

Note: The JSON object is now part of most modern web browsers (IE 8 & above). See caniuse for full listing. Credit goes to: @Spudley for his comment below

You cannot do this:

var objectArray= {};    
objectArray[0]['title']='name1';

as objectArray[0] does not exist yet. There is no array at that index and therefor you cannot add a string at an index. You have do declare the array first. The rest of your code works just fine.

JSFIDDLE

hai i got my output in JSON...now i need to convert those data into javascript..

Use JSON.parse() function in order to convert it to JS object.

var obj = JSON.parse(yourJsonString);

And now you can use for-in loop to iterate over each of its items:

for (var x in obj){
  if (obj.hasOwnProperty(x)){
    // your code
  }
}

You can use the GSON library to accomplish this.

 ArrayList<String> mylist = new ArrayList<String> ();
 mylist.add("abc");
 mylist.add("cfd");
 mylist.add("ert");
 mylist.add("fg");
 mylist.add("ujk");
 String json = new Gson().toJson(mylist);

You can refer to the GSON User Guide for more support.

We can do something like this,

ArrayList< HashMap < String,String> > list =  new ArrayList<>();

and then just pass List object to JsonArray like this

JSONArray jsArray = new JSONArray(list);

thankew!

If I read the JSONArray constructors correctly, you can build them from any Collection (arrayList is a subclass of Collection) like so:

ArrayList<String> list = new ArrayList<String>();
list.add("foo");
list.add("baar");
JSONArray jsArray = new JSONArray(list);

References:

• jsonarray constructor: http://developer.android.com/reference/org/json/JSONArray.html#JSONArray%28java.util.Collection%29
• collection: http://developer.android.com/reference/java/util/Collection.html

users is already a JS object (not JSON). But here you go:

var users_array = [];
for(var i in users) {
    if(users.hasOwnProperty(i) && !isNaN(+i)) {
        users_array[+i] = users[i];
    }
}

Edit: Insert elements at correct position in array. Thanks @RoToRa.

Maybe it is easier to not create this kind of object in the first place. How is it created?

Simply use JSON.stringify() to convert your array to json string

var jsonString = JSON.stringify(yourArray);