Looks to me like the isSelected function is expecting an individual
"member" rather than memberList.
memberList.id === this.selectedId will simply return true or false
depending on if the property "id" of the object "memberList" is equal to
this.selectedId. There is no looping involved. I would imagine it should be
more like:
isSelected(member) {
return member.id === this.selectedId;
}
assuming that the function is supposed to return a true/false value. There
are other methods to find the selected item in the array if you want to
return the member itself - for example something like:
selectedMember(memberList) {
return memberList.find(i => i.id === this.selectedId);
}
Hope this helps.
On Mon, 30 Sep 2019 at 01:03, learningA <dawgho...@gmail.com> wrote:
> I'm working through a youtube tutorial and came across a code im not
> familiar with and need some clarification.
>
> isSelected(memberList){
> return memberList.id === this.selectedId;
> }
>
> is the code: return memberList === this.selectedId like a foreach loop
> that iterating through the memberList array to match a selectedId?
>
> memberList is a list of test users.
>
> isSelected function which is bind to a class
>
> <li *ngFor="let user of memberList" [class.selected]=
> "isSelected(memberList)">
> <span class="badge" >{{user.id}}</span>
> {{user.name}}
> </li>
>
> the author of the tutorial demonstrating how to code the back button and
> how the list should be highlighted.
>
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