Angular RxJS multiple filters - draft

  emailMatch(input1: HTMLInputElement, input2: HTMLInputElement) {
    const input1$ = Observable.fromEvent(input1, 'keyup')
      .map((evt: any) => evt.target.value);
    const input2$ = Observable.fromEvent(input2, 'keyup')
      .map((evt: any) => evt.target.value);

    return input1$.merge(input2$)
      .filter(text => text.length > 3)
      .filter(res => {
        return input1.value === input2.value;
      })
  }
}




    emailMatch(this.emailRef.nativeElement, this.emailRef2.nativeElement)
      .subscribe(
        res => console.log ('MATCH', res),
        err => console.log ('MATCH ERROR', err),
        () => console.log ('MATCH DONE'),
      )