src/vs/editor/contrib/wordOperations/browser/wordOperations.ts/DeleteWordRight/constructor
class DeleteWordRight:	constructor() {
		super({
			whitespaceHeuristics: true,
			wordNavigationType: WordNavigationType.WordEnd,
			id: 'deleteWordRight',
			precondition: EditorContextKeys.writable,
			kbOpts: {
				kbExpr: EditorContextKeys.textInputFocus,
				primary: KeyMod.CtrlCmd | KeyCode.Delete,
				mac: { primary: KeyMod.Alt | KeyCode.Delete },
				weight: KeybindingWeight.EditorContrib
			}
		});
	}