How to fix fetching JSON data on inside of loop with limit number?

Question

There is something bothers me. I'm trying to understand this output in console, take a look

listdata is a global variable.

I can use listdata.orders[x].id_order to return any numbers without errors.

Then I use for() to make a list and it gave me an error that doesn't make sense =/

EDIT: It needs to be limited as 9 items, not complete as data.length

Answer 1

Use this

listdata.orders.forEach(function (order) {
    console.log(order.id_order);
});

To limit the iteration to 9 orders.

Method 1:

listdata.orders.slice(0, 9).forEach(function (order) {
    console.log(order.id_order);
});

Method 2:

listdata.orders.some(function (order, index) {
    if (index > 9) {
        return true;
    }
    console.log(order.id_order);
});

Answer 2

var a = listData.orders; //All Orders
for(var b in a) 
{
var c = [b];
 console.log(c,c.id_order); //Know the values...
}