### Closure for 'show_on_cb' parameter

Source: https://github.com/wpsight/wpcasa/blob/master/vendor/cmb2/cmb2/CHANGELOG.md

Example of using a closure for the 'show_on_cb' parameter in a CMB2 box or field configuration. The closure receives the CMB2 object and returns a boolean based on whether the current object has the 'cats' tag.

```php
	...
	'show_on_cb' => function( $cmb ) { return has_tag( 'cats', $cmb->object_id ); },
	...
```

--------------------------------

### Override code editor defaults with data-codeeditor attribute

Source: https://github.com/wpsight/wpcasa/blob/master/vendor/cmb2/cmb2/CHANGELOG.md

Use this PHP snippet to customize the CodeMirror settings for a textarea_code field by specifying a data-codeeditor attribute. The example sets the mode to 'css'. This attribute overrides the default code editor settings.

```php
'attributes' => array(
		'data-codeeditor' => json_encode( array(
			'codemirror' => array(
				'mode' => 'css',
			),
		) ),
	),
```

--------------------------------

### Set CMB2 box context to before_permalink

Source: https://github.com/wpsight/wpcasa/blob/master/vendor/cmb2/cmb2/CHANGELOG.md

Defines a CMB2 box with the 'before_permalink' context to output fields in that location in the post-editor. The '...' represents omitted registration arguments.

```php
$cmb_demo = new_cmb2_box( array(
	...
	'context' => 'before_permalink',
) );
```

--------------------------------

### Disable CodeMirror for textarea_code field

Source: https://github.com/wpsight/wpcasa/blob/master/vendor/cmb2/cmb2/readme.txt

Specify an 'options' array with 'disable_codemirror' set to true in the field config to opt out of the WordPress CodeMirror editor introduced in CMB2 2.4.0.

```php
'options' => array( 'disable_codemirror' => true )
```

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