Console.log for a JSON.Stringify Circular reference

stringify.js

var cache = [];
var x = JSON.stringify(YOUR_VARIABLE_OBJECT_HERE, function(key, value) {
  if (typeof value === 'object' && value !== null) {
    if (cache.indexOf(value) !== -1) {
      // Circular reference found, discard key
      return;
    }
    // Store value in our collection
    cache.push(value);
  }
  return value;
});
cache = null; // Enable garbage collection

console.log(x);