如何使用AngularJS模型动态添加新输入？

Question

I have AngularJS controller:

$scope.name = "Ann";
$scope.test = "Hello, {{name}}!";

var element = document.createElement("input");
element.setAttribute('ng-model', "name");
document.getElementById("preview").appendChild(element);

And HTML-code:

<div id="preview">
    <p ng-bind-html="test"></p>
</div>
{{name}}

But at page I see Hello, {{name}}! , empty input and Ann name. How to setting input and div for show name? That I change name in input and name changed in div?

Answer 1

Checkout this plnkr

 $scope.name = "Ann";
$scope.test = "Hello, {{name}}!";

var element = document.createElement("input");
element.setAttribute('ng-model', "name");
document.getElementById("preview").appendChild(element);

$compile(document.getElementById("preview"))($scope);

Answer 2

ng-html compile does not compile bindings but only parses the static html. If you want to also have your syntax compiled in strings you need to implement custom directive for that:

app.directive('ngHtmlCompile', ["$compile", function ($compile) {
    return {
        restrict: 'A',
        link: function (scope, element, attrs) {
            scope.$watch(attrs.ngHtmlCompile, function (newValue, oldValue) {
                element.html(newValue);
                $compile(element.contents())(scope);
            });
        }
    }
}]);

and then you can compile:

<div ng-html-compile="Hello, {{name}}!"></div>