<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>test</title> <script src="js/angular.js"></script> <script type="application/javascript"> (function(angular) { 'use strict'; angular.module('myApp', []) .controller('firstController', function firstController($scope,$timeout) { $scope.firstNum = 1; $scope.secondNum = 1; $scope.doMySum = function(){ var fn = angular.isNumber($scope.firstNum)?$scope.firstNum:0; var sn = angular.isNumber($scope.secondNum)?$scope.secondNum:0; return fn+sn; } $timeout(function(){ $scope.firstNum = 10; },2000); $scope.$watch('doMySum()',function(newValue, oldValue){ if(newValue == 100){ alert('ok'); } }); }); })(window.angular); </script> </head> <body > <div ng-app="myApp"> <div ng-controller="firstController"> <input type="number" name="firstNum" ng-model="firstNum" required/> +<input type="number" name="secondNum" ng-model="secondNum" required/> ={{doMySum()}} </div> </div> </body> </html>
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