cbjartli / gjs-tutorial Goto Github PK

Hi,
I can't run the following code
`#!/usr/bin/gjs

const Gtk = imports.gi.Gtk;
const Lang = imports.lang;

Gtk.init(null);

class MyWindow extends Gtk.Window {
constructor() {
super({ title: "Hello World" });
this.button = new Gtk.Button({ label: "Click here" });
this.button.connect("clicked", MyWindow.onButtonClicked);
this.add(this.button);
}

static onButtonClicked() {
    print("Hello World");
}   

}
GObject.registerClass(MyClass);

let win = new MyWindow();
win.connect("delete-event", Gtk.main_quit);
win.show_all();
Gtk.main();`

The lang module imported but never used
MyClass refrenced but never used
when running gjs is complaining about the ES6 syntax (class definition)