Q:

Hide every null variable from collection

Sometimes {{$vs->users2}} or {{$vs->users3}} will have null value, i need to hide them if both or one of them have null value. i tried with isset or isnull but none of them work. 
@foreach ($vs as $vs)
    <div class="list-group-item" ng-hide="$vs->users == null">
            <h4>{{$vs->gps_vs}}</h4>
            <h5>Participantes: {{$vs->users4}} {{$vs->users3}} <a>VS</a> {{$vs->users1}} {{$vs->users2}}
            </h5>
            <a>Empieza: {{$vs->time_vs}} {{$vs->date_vs}} </a><a>Creado por: {{$vs->users4}}</a> 
        <div class="right2">
                {!! Form::open(['action' => ['MatchController@destroy', $vs->id], 'method' => 'POST']) !!}
                {{Form::hidden('_method', 'DELETE')}}
                {{Form::submit('Borrar evento', ['class'=>"btn btn-danger"])}}
            {!! Form::close() !!}
        </div>       
    </div>    
@endforeach

my form where the null value comes
<select class="col-sm-2 form-control" name="users3">
        <option selected value=null>Nothing</option>
      @foreach($users3 as $users3)
        @if ($users3->id == 0 or $users3->id == Auth::user()->id);
        @else
        <option value="{{$users3->nick}}">{{$users3->nick}}</option> 

        @endif
      @endforeach

    </select>

A:

You can do,
{{$vs->users2 or ''}}

If it is throwing error you can disable it by @ error control operator
{{@$vs->users2}}

You can use the same for users3 also.
EDIT
Change ur foreach to @foreach ($vs as $v). 

Note: You just can't have array and value name same while looping.

and replace every vs with v inside that.
EDIT 2
Your final html should look like this
@foreach ($vs as $v)
    <div class="list-group-item" ng-hide="$v->users == null">
            <h4>{{$v->gps_vs}}</h4>
            <h5>Participantes: {{$v->users4 or ''}} {{$v->users3 or ''}} <a>VS</a> {{$v->users1 or ''}} {{$v->users2 or ''}}
            </h5>
            <a>Empieza: {{$v->time_vs}} {{$v->date_vs}} </a><a>Creado por: {{$v->users4}}</a> 
        <div class="right2">
                {!! Form::open(['action' => ['MatchController@destroy', $v->id], 'method' => 'POST']) !!}
                {{Form::hidden('_method', 'DELETE')}}
                {{Form::submit('Borrar evento', ['class'=>"btn btn-danger"])}}
            {!! Form::close() !!}
        </div>       
    </div>    
@endforeach

