W3Schools Tryit Editor

<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<body ng-app="myApp" ng-controller="todoCtrl">

<br>

<p><button ng-click="remove()">Remove marked</button></p>

$scope.todoAdd = function() {
        $scope.todoList.push({todoText:$scope.todoInput, done:false});
        $scope.todoInput = "";
    };

$scope.remove = function() {
        var oldList = $scope.todoList;
        $scope.todoList = [];
        angular.forEach(oldList, function(x) {
            if (!x.done) $scope.todoList.push(x);
        });
    };
});
</script>

</body>
</html>

​x
 
<!DOCTYPE html><html><script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script><body ng-app="myApp" ng-controller="todoCtrl">​<h2>My Todo List</h2>​<form ng-submit="todoAdd()">    <input type="text" ng-model="todoInput" size="50" placeholder="Add New">    <input type="submit" value="Add New"></form>​<br>​<div ng-repeat="x in todoList">    <input type="checkbox" ng-model="x.done"> <span ng-bind="x.todoText"></span></div>​<p><button ng-click="remove()">Remove marked</button></p>​<script>var app = angular.module('myApp', []); app.controller('todoCtrl', function($scope) {    $scope.todoList = [{todoText:'Clean House', done:false}];​    $scope.todoAdd = function() {        $scope.todoList.push({todoText:$scope.todoInput, done:false});        $scope.todoInput = "";    };​    $scope.remove = function() {        var oldList = $scope.todoList;        $scope.todoList = [];        angular.forEach(oldList, function(x) {            if (!x.done) $scope.todoList.push(x);        });    };});</script>​</body></html>​