Javascript 角度指令验证和解密

我试图构建一个指令，首先验证用户输入

验证输入后，我想用sha256散列字符串，并返回一个只包含加密输入的新模型

我知道这是一个奇怪的功能，但我有一位客户需要它：

以下是我的地址：

---

通过简化脚本解决了我的问题

app.directive('valiCrypt', function ($timeout) {

    var validateInput =function(input) {
         // Returns validation logic result here.
    }

    return {
        restrict: 'A',
        require: 'ngModel',
        replace: true,
        scope: {
            vcModel: "=ngModel",
            vcDuration: "@",
            vcText: "@"
        },

        link: function (scope) {

            if (!scope.vcDuration) {
                scope.vcDuration = 0;
            }

            if (!scope.vcText) {
                scope.vcText = "";
            }

            scope.$watch('vcModel', function (value) {
                if (value) {
                    if (value.length === 11) {
                        var result = validateInput(value);

                        if (result) {

                            var copy = angular.copy(scope.vcModel);

                            scope.vcModel = scope.vcText;

                            $timeout(function () {
                                // <script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/sha256.js"></script>
                                copy = CryptoJS.SHA256(value);
                                scope.vcModel = copy;
                            }, scope.vcDuration, true);
                        }
                    }
                }
            });
        }
    };
});

---

@阿乔姆。代码没有任何问题，如果你阅读了这个问题，你可能会觉得我想扩展它，所以它返回一个加密字符串。

app.directive('valiCrypt', function ($timeout) {

    var validateInput =function(input) {
         // Returns validation logic result here.
    }

    return {
        restrict: 'A',
        require: 'ngModel',
        replace: true,
        scope: {
            vcModel: "=ngModel",
            vcDuration: "@",
            vcText: "@"
        },

        link: function (scope) {

            if (!scope.vcDuration) {
                scope.vcDuration = 0;
            }

            if (!scope.vcText) {
                scope.vcText = "";
            }

            scope.$watch('vcModel', function (value) {
                if (value) {
                    if (value.length === 11) {
                        var result = validateInput(value);

                        if (result) {

                            var copy = angular.copy(scope.vcModel);

                            scope.vcModel = scope.vcText;

                            $timeout(function () {
                                // <script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/sha256.js"></script>
                                copy = CryptoJS.SHA256(value);
                                scope.vcModel = copy;
                            }, scope.vcDuration, true);
                        }
                    }
                }
            });
        }
    };
});