Please copy here all the code on the page from the beginning of the page.
By the way, note that you have to decide what the function of the button or search or refresh now leaving the two options it of course creates a collision
$ w (‘# button’). onClick ((event) => {
filter ()
// or
$ w (‘# fullname’). value = null
$ w (‘# idnumber’). value = null
$ w (‘# registration’). value = null
$ w (“# dataset1”). refresh ()
})