AngularJS输入URL无效/有效/错误

Question

I've a mistake with input type url in angularjs. I would disable the button if input is empty or invalid and I wrote the code below. Well, it's fine on the first time o if I write an incorrect url but if it's empty propForm.imgUrl.$invalid and propForm.imgUrl.$error.url it returns me false and this enable click of button

    <div class="col-sm-10">
          <input type="url" name="imgUrl" ng-model="$parent.urlImage" class="form-control">
            </div>
                <div class="pull-right col-sm-2">
                   <a href="" class="btn btn-default btn-primary" ng-disabled="propForm.imgUrl.$invalid || propForm.imgUrl.$pristine || propForm.imgUrl.$error.url" ng-click="addImage()">Add</a>
                 </div>

Where is the trick?a

Answer 1

The quickest way is adding required to input please see demo below.

 var app = angular.module('app', []); app.controller('homeCtrl', function($scope) { }); 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" type="text/css" /> <div ng-app="app"> <div ng-controller="homeCtrl"> <form name="propForm"> <div class="col-sm-10"> <input type="url" name="imgUrl" ng-model="$parent.urlImage" class="form-control" required> </div> <div class="pull-right col-sm-2"> <a href="" class="btn btn-default btn-primary" ng-disabled="propForm.imgUrl.$invalid || propForm.imgUrl.$pristine || propForm.imgUrl.$error.url" ng-click="addImage()">Add</a> </div> </form> </div> </div>