Angular 2 error:

Question

Playing around with Angular 2 and trying to get this simple code working. yet I keep getting an error of:

EXCEPTION: Cannot resolve all parameters for Ta

Answer 1

That's because your Tabs class is defined after your Tab class and classes in javascript aren't hoisted.

So you have to use forwardRef to reference a not yet defined class.

export class Tab {
    @Input() tabTitle: string;
    public active:boolean;
    constructor(@Inject(forwardRef(() => Tabs)) tabs:Tabs) {
        this.active = false;
        tabs.addTab(this);
    }
}