An object that defines a field.
200.1.0
Creates a new field object with the following parameters.
The field's alias.
The field's domain.
The field as not being editable.
The field's data type. Warning: Shapefile fields of type date do not store a time.
The length of the field.
The field's name.
True if the field is nullable.
Serializes this object to a JSON string.