• ng-untouched
• ng-touched
• ng-pristine
• ng-dirty
• ng-valid
• ng-invalid

NgModel Properties

• untouched
• touched
• pristine
• dirty
• valid
• invalid

<form #form="ngForm" ngNativeValidate>
    <div class="form-group">
        <label for="name">Name</label>
        <input id="name" name="name" class="form-control" required  #propertyTest="ngModel" />
       </div>
    <button class="btn btn-primary">Send</button>
</form>

<h4>dirty: {{propertyTest .dirty}}</h4>
<h4>pristine: {{propertyTest .pristine}}</h4>
<h4>touched: {{propertyTest .touched}}</h4>
<h4>untouched: {{propertyTest .untouched}}</h4>
<h4>valid: {{propertyTest .valid}}</h4>
<h4>invalid: {{propertyTest .invalid}}</h4>