Add new text box on click of a button in angular js

How do I add new text box when submit button is pushed. This is what I have tried and I know there's some thing wrong. I am still new to angular js.

Example:

<!doctype html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Example - example-ngController-production</title>
        <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.0/angular.min.js"></script>
        <script>
            angular.module('controllerAsExample', []).controller('SettingsController1', function ($scope) {

                $scope.contacts=[]
                $scope.addContact = function()
                {
                  $scope.contact.push({$scope.contact})
                }
            });
            };
        </script>
    </head>
    <body ng-app="controllerAsExample">
        <div id="ctrl-as-exmpl" ng-controller="SettingsController1">

            <ul>
                <li ng-repeat="contact in contacts">
                    <input type="text" ng-model="contact" />
                </li>
                <li><button ng-submit="addContact()">add</button></li>
            </ul>
        </div>
    </body>
</html>

In you code, you are doing:-

        $scope.addContact = function()
        {
          $scope.contact.push({$scope.contact})
        }

This is where the problem is. If you just need to add an empty textbox, you just need to add an empty contact to contacts, and ng-repeat will take care of adding the new textbox in the list. Another thing is that you were pushing into contact, and not contacts.

Also, ngSubmit is used inside a form, which you do not have. So, use ng-click instead. Here is a plunker showing the code working.

            $scope.addContact = function()
            {
              $scope.contacts.push({ name: '' });
            }

You should replace your ng-submit with ng-click that will solve your problem And with that you need to change your object structure to persist a value, like you need to add contact number in contact object like contact.number

Markup

<ul>
    <li ng-repeat="contact in contacts">
      <input type="text" ng-model="contact.number" />
    </li>
    <li>
      <button type="button" ng-click="addContact()">add</button>
    </li>
</ul>

Code

angular.module('controllerAsExample', [])
.controller('SettingsController1', function($scope) {
  $scope.contacts = []
  $scope.addContact = function() {
    $scope.contacts.push({
    })
  }
});

Demo Plunkr

来源：https://stackoverflow.com/questions/30828545/add-new-text-box-on-click-of-a-button-in-angular-js

标签

angularjs

angularjs-ng-repeat

angularjs-controller