//listen for window resize event
window.addEventListener('resize', function(event){
var newWidth = window.innerWidth;
var newHeight = window.innerHeight;
}); window.onresize = () => {
this.setState({ ww: window.innerWidth }); this.build(); this.draw();
}resizeObservable$: Observable<Event>
resizeSubscription$: Subscription
ngOnInit() {
this.resizeObservable$ = fromEvent(window, 'resize')
this.resizeSubscription$ = this.resizeObservable$.subscribe( evt => {
console.log('event: ', evt)
})
}