Since: Editor 1.0

Show / hide error messages for the whole form, or a specific field.
Please note - this property requires the Editor extension for DataTables.

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It can often be useful to show an error message informing the end user that they need to take action on a specific field, or if a global form error has occurred. Common use cases are individual and multiple field validation and general error reporting, such as a database communications error.

This method provides the ability to set a global form error message, an error message for a specific field, or to remove any existing error messages.

Note that the field().error() method introduced in Editor 1.3 provides the same functionality as the second form of this method. Both forms will continue to be supported in future versions of Editor, and they can often be used interchangeably. The key difference is in the return value - this method will return a DataTables.Editor instance, while the field().error() method returns a DataTables.Editor.Field instance. This can effect how you chain methods if you are using the returned value for chaining.