javascript_realtime_debug.md

    var cache = [];
    console.log(JSON.parse(JSON.stringify(this, function(key, value) {
      if (typeof value === 'object' && value !== null) {
        if (cache.indexOf(value) !== -1) {
          return;
        }
        cache.push(value);
      }
      return value;
    })));
    cache = null;