Get value from HTML page to angularJS file - angularjs

Question

I tried to get the HTML page value to angularJS function , The below steps are which i tried.
HTML page :
<label class="item-input item-stacked-label">
<span class="input-label cont_det_label">First Name</span>
<p class="contact_display" id="txtFirstName" ng-model="testName">Satya</p>
</label>
angularJS Page :
.controller('SocialNetworkCtrl', ['$scope','$http','$state','ContactsService','$ionicNavBarDelegate','$ionicLoading','$ionicPopup',function($scope, $http, $state, ContactsService, $ionicNavBarDelegate, $ionicLoading,$ionicPopup) {
$scope.showUserProfile = function() {
$state.go("linkedin");
var firstname = (document.getElementById("txtFirstName").value);
}
}])
So I need var firstname = Satya ?? Is it correct way please guide me to access this value .

Answer 1

var firstName = $scope.testName
<input ng-model="testName" />
testName is the ng-model name that you have give. It will be automatically binded to your controller. No need the get the value using document.getElementById
Wrong usage , why ng-model in <p> tag??
Update
Change your fiddle with the following code, it will work. Also make sure framework is selected properly (as in the image)
<div ng-app ng-controller="testController">
<input ng-model="testDataName" ng-change="check()" /> {{testDataName}}
After ng-change : {{checkName}}
</div>
function testController($scope) {
$scope.testDataName="Dummy Name";
$scope.check = function () {
$scope.checkName=$scope.testDataName;
console.log($scope.checkName);
};
}

Answer 2

its a text node, you will require .innerHTML or '.innerText', .value is for form inputs
var firstname = (document.getElementById("txtFirstName").innerHTML);
and don't use ng-model on a p element, change it to like this
<p class="contact_display" id="txtFirstName">{{testName}}</p>
just use $scope.testName to get the value, no need for firstname = (document.getElementById("txtFirstName").innerHTML); querying DOM for value is jQuery style, use angular the $scope for 2 way bindings
Read more at official doc
Update here is updated function on loginCtrl
.controller('loginCtrl', ['$scope', function ($scope) {
$scope.testNameData = 'Satya';
$scope.doLogin = function() {
alert($scope.testNameData);
};
}])
If you really want to go jQuery way here is what you can do, its not recommended, you should use angular directive to do DOM manipulation
$scope.showUserPro = function() {
$ionicLoading.show();
// Here i need the value of <p tag>
var name = document.getElementById("txtFirstName"),
firstNameFromHtmlPtag = name.innerText;
console.log(firstNameFromHtmlPtag, 'Doing API Call 1');
}