jQuery .each() array in .each() array

Question

Hear an Object Array

 advancedParams = [];
 advancedParams["cost"] = [];
 advancedParams["cost"]["from"] = 10;
 advancedParams["cost"]["to"] = 100;

But the .each() do not see second array

 $.each(advancedParams, function( idx, obj ) {
 console.log(idx); // shows cost
 console.log(obj ); // shows [from: "10", to: "200"]
 $.each(obj, function( key, value ) {
 console.log(key); // nothing
 //each have no iterations, why?
 });
 }

• Jai: {cost: [from: "10"], [to: "200"]} i guess it is invalid.
• Николай Сколунов: Find problem. Array binding by advancedParams = {}, but the second was bind by advancedParams[param] = [], when type advancedParams[param] = {} it start work.

Answer 1

This is absolutely invalid:

{cost: [from: "10"], [to: "200"]}

because in an array you can't have values with : separated.

Instead of declaring an array [] you should assign an object.

advancedParams = {};
advancedParams["cost"] = {};

check in the demo below.

var advancedParams = {};
advancedParams["cost"] = {};
advancedParams["cost"]["from"] = 10;
advancedParams["cost"]["to"] = 100;
$.each(advancedParams, function(i, obj) {
 console.log(obj); // results in "Object {from: 10, to: 100}"
 $.each(obj, function(i, item) {
 console.log(item); // results in "10, 100"
 });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

• Николай Сколунов: Update array. Simply I tried to explain more simply.
• Николай Сколунов: Yes. Problem was in advancedParams["cost"] = [ ]

Answer 2

Your object definition it's invalid. Look at the error message below :

invalid object definition

Store it in an object like this : var obj = { from: 10, to:200}. Or if you want an array of objects, do it like this: var arr =[{from:10,to:200},{from:1, to:300}].