public container = document.querySelector(".uc-card");

public $onInit() {
    this.scroll(this.container);
    this.doSomething();

    this.container.addEventListener('scroll', function() {

        console.log('scrollOnInit');
        this.scroll(this.container);
        this.doSomething();

    });
}

private doSomething() {
    console.log('doSomething');
}

private scroll(e) {
    console.log('scroll')
    console.log(e.scrollTop);
    console.log(this.container.scrollTop);
}

scroll
0
0
doSomething