Unable to use with moment loaded as an import

[jbouzekri]

Steps to reproduce and a minimal demo

I could not do a plunkr. I don't know how to do it with webpack loader and typescript support. Sorry.

These are the steps to reproduce it :

init a simple AngularCLI project :

ng new myapp
npm install --save moment
npm install @ngui/datetime-picker --save

In AppModule, add :

import * as moment from 'moment';
import 'moment/min/locales';

In AppComponent html file, add :

<input type="text" ngui-datetime-picker name="start_date" [(ngModel)]="start_date" id="form-startdate" class="form-control" date-format="DD-MM-YYYY hh:mm:ss" required />

The ngModel bindings works but the field stays empty. I think the issue is here :
https://github.com/ng2-ui/datetime-picker/blob/master/src/datetime.ts#L80
You are waiting for a global moment library and not one imported using an import declaration.

Current behavior

The date-format attribute is ignored as it does not find the moment library which is loaded as an import and not a global.

Expected/desired behavior

Loading the moment library as an import should be the recommended way of handling it.