In your application sometimes you will need to pass parameter to event handler, for example if you want to delete a row from a table, you have to pass the argument to event handler.
<td><a href="javascript:void(0)" @click="delete_row(attach.id)"> <i class="far fa-trash-alt"></i> </a> </td>
In above code, I am passing the argument attachment id to the event handler delete_row @click
So your event handler will be like this
methods: { delete_row: function (id) { console.log(id) } }
Normally in delete and update operations in Vue you can use this methods