# Editor example Options - disable days

It can sometimes be useful to not allow selection of particular days - the `datetime` field provides that ability through the `disableDays` option. It can be provided as an array of day numbers in the week to disable (Sunday = 0, Monday = 1, etc) or as a function to provide more fine grained control.

This example shows the `disableDays` option being used to disable date selection on Saturdays and Sundays. Note that validation of this information should also be performed at the server-side since it is possible for the end user to type in an invalid date, rather than using the calendar picker.

First name | Last name | Updated date | Registered date
--- | --- | --- | ---

- JavaScript
- HTML
- CSS
- Ajax
- Server-side script

The JavaScript shown below is used to initialise the table shown in this example:

`const editor = new DataTable.Editor({ ajax: '../php/dates.php', fields: [ { label: 'First name:', name: 'first_name' }, { label: 'Last name:', name: 'last_name' }, { label: 'Registered date:', name: 'registered_date', type: 'datetime', opts: { disableDays: [0, 6] } } ], table: '#example' }); new DataTable('#example', { ajax: '../php/dates.php', columns: [ { data: 'first_name' }, { data: 'last_name' }, { data: 'updated_date' }, { data: 'registered_date' } ], layout: { topStart: { buttons: [ { extend: 'create', editor: editor }, { extend: 'edit', editor: editor }, { extend: 'remove', editor: editor } ] } }, select: true });`

In addition to the above code, the following JavaScript library files are loaded for use in this example:

The HTML shown below is the raw HTML table element, before it has been enhanced by DataTables:

This example uses a little bit of additional CSS beyond what is loaded from the library files (below), in order to correctly display the table. The additional CSS used is shown below:

``

The following CSS library files are loaded for use in this example to provide the styling of the table:

This table loads data by Ajax. The latest data that has been loaded is shown below. This data will update automatically as any additional data is loaded.

The script used to perform the server-side processing for this table is shown below. Please note that this is just an example script using PHP. Server-side processing scripts can be written in any language, using the protocol described in the DataTables documentation.