[Vuejs]-Hide popup box when clicked anywhere on the document

If you want to be able to edit multiple items at the same time, you should store the list of edited items, not global edit_item_visible flag.

    showEdit(item)
    {
        this.selected = item;
        this.editing_items.push(item);
    }


    // v-on-clickaway="cancelEdit(item)"
    cancelEdit(item)
    {
        let idx = this.editing_items.indexOf(item);
        this.editing_items.splice(idx, 1);
    }