You may know the global object in Node.js:
{Object} The global namespace object.
In browsers, the top-level scope is the global scope. T
It is exactly the same as global
.
There are a few undocumented properties like this. They date from early days of node but were left in to maintain backwards-compatibility and there is no pressing need to remove them.
You shouldn't use them in any new code, as they could be removed at any future time.