AngularJS form verification example (not required)

The code looks like this:

&lt;form ng-app="myApp" ng-controller="validateCtrl" 
name="myForm" novalidate&gt;

&lt;p&gt;Telephone:&lt;br&gt;
&lt;input type="text" name="phone" ng-model="phone" ng-pattern="/(^$)|^(((\+86)|(86))?1[34578]\d{9})$/"&gt;
&lt;span style="color:red" ng-show=".$dirty &amp;&amp; .$invalid"&gt;
  联系Telephone格式不正确！&lt;/span&gt;
&lt;/p&gt;

&lt;p&gt;
&lt;input type="submit"
ng-disabled="myForm.$invalid"&gt;
&lt;/p&gt;
&lt;/form&gt;

Regular expression:

1. Match empty: ^$

2. Match mobile phone number: ^(((\+86)|(86))?1[34578]\d{9})$

3. Control the display of prompt information: ng-show=".$dirty && .$invalid"

The above example of AngularJS form verification mobile phone number (not required) is all the content I share with you. I hope you can give you a reference and I hope you can support me more.