ERROR Error: If ngModel is used within a form tag, either the name code example
Example 1: ERROR Error: If ngModel is used within a form tag, either the name attribute must be set or the form control must be defined as 'standalone' in ngModelOptions.
<input [(ngModel)]="note" name="something">
<input [(ngModel)]="note" [ngModelOptions]="{standalone: true}">
Example 2: Error: If ngModel is used within a form tag
// If form is used, all the input fields which have [(ngModel)]="" must have
// an attribute name with a value.
<input [(ngModel)]="firstname" name="something">