Automatic Type Acquisition in VSCode on Ubuntu 14.04

Question

I'm at my wits end with this.

I've read this, this and this amongst others. I've spent two days on it and gotten nowhere. During the process I upgraded to VSCode 1.16.0 so I'm fully up-to-date.

In my final attempt, I tried to go as simple as possible. So I did the following:

1. Create test project directory vscodetest
2. cd into vscodetest
3. open vscode using vscode . from terminal
4. add new JavaScript file app.js
5. add jsconfig.json with the following configuration

{
    "typeAcquisition": {
        "include": [
            "jquery"
        ]
    }
}

6. In app.js start typing the following...

var f = $('sdsf').

When I hit ., (period) Intellisense just gives me $ and f.

Help appreciated.