angularjs單選按鈕值檢查

Question

當我選擇單選按鈕時沒有任何反應。請chk我的jsfiddle，並幫助我找到我做錯了什麼。

var prnt = document.getElementById("prnt"); 
var app = angular.module('App', []); 
app.controller('aCtrl', function($scope) { 
$scope.correctAns = function(){ 
if($scope.chk === "false"){ 
prnt.innerHTML+="working"; 

}; 
}; 

}); 

這裏是我的jsfiddle鏈接

http://jsfiddle.net/rushdi1987/4d4tbext/5/

Answer 1

這是你想要做什麼？

var prnt = document.getElementById("prnt"); 
var app = angular.module('App', []); 
app.controller('aCtrl', function ($scope) { 

    $scope.chk = { 
     val: false 
    }; 

    $scope.check = function() { 
     if ($scope.chk.val === false) { 
      prnt.innerHTML = "True"; 
     } 
    } 
});