[lftl]

I don't even understand what the last node.js entry is. Is that an array with two objects?

Also, I'm on an old version of node, but my output matches jsc.

[esrauch]

The other reply is right, to clarify String({}) === "[object Object]"

I think the actual video was a little misleading, [] + {} == the string "[object Object]" not an object. The square brackets are just part of the tostring method and are unrelated to the square brackets of arrays.

[udp]

The `toString` of two Object-s concatenated, I think.