methods: {
        closeModal: function(){
             function closeM(){
                $('.modal').css({opacity: 0 , 'visibility':'hidden'});
             }
             closeM();
        },

        closeOutside: function(){
          $(document).mouseup(function (e){
            var container1 = $('.modal__box');
            if (!container1.is(e.target) &&
            container1.has(e.target).length === 0)
              {
                this.$emit('closeModal',closeM());
              }
           });
        }
   }

<div class="modal" @click="closeOutside()">
                        <div class="modal__box z-depth-2 pr">
                            <div class="modal__header"> {{header}} </div>
                            <i class="modal__close pa fa fa-times" @click="closeModal() "> </i>
                            <div class="modal__content">
                                <slot> </slot>
                            </div>
                        </div>
                </div>

this.$emit('closeModal',closeM());

this.$emit('closeModal',this.closeModal());