Nestable alias of form directive. HTML
does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a
sub-group of controls needs to be determined.
Note: the purpose of ngForm is to group controls,
but not to be a replacement for the <form> tag with all of its capabilities
(e.g. posting to the server, ...).
<ng-form
  [name=""]>
...
</ng-form><ANY
  [ng-form=""]>
...
</ANY><ANY class="[ng-form: ;]"> ... </ANY>| Param | Type | Details | 
|---|---|---|
| ngForm
        | name (optional) | string | Name of the form. If specified, the form controller will be published into related scope, under this name. |