使用 TypeScript 类编写 Angular 指令 [英] Writing an Angular directive with a TypeScript class

问题描述

我可能只是试图一次组合太多新手"概念，但我正在尝试使用 TypeScript 类编写自定义 Angular 指令.目前，我不想做任何非常有用的事情，只是一个 POC.

我有一个像这样的 TypeScript 文件:

module App {'使用严格';导出类 appStepper {公共链接:(范围:angular.IScope，元素:angular.IAugmentedJQuery，属性:angular.IAttributes)=>空白;public template:string = '<div>0</div><button>-</button><button>+</button>';公共范围 = {};公共限制:字符串 = 'EA';构造函数(){}公共静态工厂(){var 指令 = () =>{ 返回新的 appStepper();};返回指令；}}angular.module('app').directive('appStepper', App.appStepper.Factory());}

它在 JavaScript 中编译为:

(function(App) {'使用严格';var appStepper = (function() {函数 appStepper() {this.template = '<div>0</div><button>-</button><button>+</button>';this.scope = {};this.restrict = 'EA';}appStepper.Factory = function() {var 指令 = function() {返回新的 appStepper();};返回指令；};返回 appStepper；})();App.appStepper = appStepper;angular.module('app').directive('appStepper', App.appStepper.Factory());})(App || (App = {}));

我的 angular 模块看起来像(我什至不知道我是否需要这样做):

angular.module('app',['appStepper'])

我尝试在我看来使用它:

并得到这些错误:

 未捕获的错误:[$injector:nomod]未捕获的错误:[$injector:modulerr]

为什么我的 app 不知道我的指令?

解决方案

虽然这不是一个完全相同的问题，但这个答案包含了我正在尝试做的一个例子:如何使用 TypeScript 定义控制器?

我按照它引用的 Plnkr 中的示例进行操作并发现成功:http://plnkr.co/edit/3XORgParE2v9d0OVg515?p=preview

我的最终 TypeScript 指令如下所示:

module App {'使用严格';导出类 appStepper 实现 angular.IDirective {公共链接:(范围:angular.IScope，元素:angular.IAugmentedJQuery，属性:angular.IAttributes)=>空白;public template:string = '<div>0</div><button>-</button><button>+</button>';公共范围 = {};公共限制:字符串 = 'EA';构造函数(){}}angular.module('app').directive('appStepper', [() => new App.appStepper()]);}

I may just be attempting to combine too many "new-to-me" concepts at once, but I am trying to write a custom Angular directive using a TypeScript class. At the moment, I'm not trying to do anything terribly useful, just a POC.

I have a TypeScript file that looks like this:

module App {
    'use strict';

    export class appStepper {

        public link:(scope:angular.IScope, element: angular.IAugmentedJQuery, attrs: angular.IAttributes) => void;
        public template:string = '<div>0</div><button>-</button><button>+</button>';
        public scope = {};
        public restrict:string = 'EA';

        constructor(){ }

        public static Factory(){
            var directive = () =>
            { return new appStepper(); };
            return directive;
        }
    }

    angular.module('app').directive('appStepper', App.appStepper.Factory());
}

It compiles to this in JavaScript:

(function(App) {
    'use strict';
    var appStepper = (function() {
        function appStepper() {
            this.template = '<div>0</div><button>-</button><button>+</button>';
            this.scope = {};
            this.restrict = 'EA';
        }
        appStepper.Factory = function() {
            var directive = function() {
                return new appStepper();
            };
            return directive;
        };
        return appStepper;
    })();
    App.appStepper = appStepper;
    angular.module('app').directive('appStepper', App.appStepper.Factory());
})(App || (App = {}));

My angular module looks like (I don't even know if I need to do this):

angular.module('app',['appStepper'])

And I attempt to use it in my view:

<div app-stepper></div>

And get these errors:

 Uncaught Error: [$injector:nomod] 
 Uncaught Error: [$injector:modulerr] 

Why doesn't my app know about my directive?

解决方案

Though it is not quite the same question, this answer included an example of what I'm attempting to do: How can I define my controller using TypeScript?

I followed the example in the Plnkr it referenced and found success: http://plnkr.co/edit/3XORgParE2v9d0OVg515?p=preview

My final TypeScript directive looks like:

module App {
    'use strict';

    export class appStepper implements angular.IDirective {

        public link:(scope:angular.IScope, element: angular.IAugmentedJQuery, attrs: angular.IAttributes) => void;
        public template:string = '<div>0</div><button>-</button><button>+</button>';
        public scope = {};
        public restrict:string = 'EA';

        constructor(){ }

    }

    angular.module('app').directive('appStepper', [() => new App.appStepper()]);
}

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