Why doesn't JSON.stringify work?

Question

Node.js

When I try to serialize an array to JSON format with a native function, JSON.stringify(clients_list)I get an empty string like []. What am I doing wrong?
Array:

var clients_list = [];
clients_list['id'] = [];
clients_list['session'] = [];
clients_list['id'][0] = 1;
clients_list['session'][0] = 1;

Answer 1

You wanted to declare an object
, but you declared an array
var clients_list = [ ];