Goals

Using console.log during debugging is a fairly common practice and the output of calling this on an object or collection from a Realm should be informative.

Expected Results

I would expect that logging a Collection of objects (such as Results) would give information on the type of items in the collection, the size of the collection and perhaps a preview of the first couple of elements in the collection. As a reference, calling console.log on an array and objects yields respectively:

console.log(a);
// [ { name: 'Alice' }, { name: 'Bob' }, { name: 'Charlie' } ]

console.log(a[0])
// { name: 'Alice' }

Actual Results, Steps to Reproduce & Code Sample

const Realm = require('realm');
const realm = new Realm({ schema: [{ name: "Person", properties: { name: "string" } }] });
realm.write(() =>{ realm.create('Person', { name: "Alice" }); });
const persons = realm.objects("Person");
console.log(persons)
// Results {}
console.log(persons[0])
// Person { [Symbol(_external)]: [External] }

In addition to this, in the Node.js REPL, when executing an expression the REPL prints its value, for a collection, this prints:

Proxy [ Results {}, {} ]

All of the output above have very limited value to a user while debugging their code.

NOTE: https://nodejs.org/dist/latest-v12.x/docs/api/util.html#util_custom_inspection_functions_on_objects might come in handy when solving this.

Version of Realm and Tooling

• Realm JS SDK Version: 5.0.0
• Node or React Native: Node.js
• Client OS & Version: Tested on MacOS
• Which debugger for React Native: None