How to set preselected tab

Question

I have this setup in html and I'm usign Angular 2. I wonder if there is any way that, on refresh page, one of tab can be preselected and be open, or must I set that in other way. thanks[![enter image description here][1]][1]

Answer 1

Write the code on init in the component as-

ngOnInit() {
 tab = 1;
}