Creating a JSON dynamically

Question

In js I have

var codedata = ["sku1","sku12","sku123"];
var pricedata = ["2.18","2.45","3.67"];
var head = 'storepricing';

I want some thing like this

var jsonData = { "storepricing" :{"sku1": "2.18", "sku12": "2.45", "sku123": "3.67"}}; 

codedata and pricedata are not static

• Andreas: That's not JSON: What is the difference between JSON and Object Literal Notation?

Answer 1

• Use Bracket-notation to have variables as keys of object.
• Array#forEach could be used to iterate array.

var codedata = ["sku1", "sku12", "sku123"];
var pricedata = ["2.18", "2.45", "3.67"];
var head = 'storepricing';
var jsonData = {};
jsonData[head] = {};
codedata.forEach(function(key, index) {
 jsonData[head][key] = pricedata[index];
});
console.log(jsonData);

Note: Length of both codeData and priceData assumed to be equal!

• Bryan Downing: This will work as long as you can be sure that codedata and pricedata always have the same number of items, and the order of the items in each array match up.
• Mahi: @BryanDowning it has to be equal otherwise how would he create object properties ?
• Rayon: @BryanDowning — That is different story which is not mentioned in the OP. I have highlighted it in the Note though :)

Answer 2

this is what you want .. but rememmber, the length of variable codedata and pricedata must be same.

// NOTE : length of variable codedata must same with legth variable pricedata
//var myJsonString = JSON.stringify(yourArray);
var codedata = ["sku1","sku12","sku123"];
var pricedata = ["2.18","2.45","3.67"];
var head = 'storepricing';
 function cJSONCustom(header,attr,val){
 var ArrJS = {};
 var ArrJSON = {};
 for(var i = 0; i < attr.length;i++){
 var name = attr[i];
 var value = val[i];
 ArrJS[name] = value;
 }
 ArrJSON[header]=ArrJS;
 console.log(ArrJSON);
 $('#result').html(JSON.stringify(ArrJSON));
 }
cJSONCustom(head,codedata,pricedata);

<!-- 
Dinamically generate JSON data from array.
Created by : AchmaDesigner 
-->
<p id="result"></p>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>