Exploring the power of developing AngularJS applications using Typescript and the app

Question

Exploring the power of developing AngularJS applications using Typescript and the app

I am currently working on a basic application that utilizes Typescript and AngularJS. In my app, I have used app.js to register my controller and some route parameters:

/// <reference path="../scripts/typings/angularjs/angular.d.ts" />
/// <reference path="secondController.ts" />
/// <reference path="../scripts/typings/angularjs/angular-route.d.ts" />
module myApp {
export class Config {
  constructor($routeProvider: ng.route.IRouteProvider) {
     $routeProvider.when("/add", { templateUrl: "test.html", controller: "CategoryCtrl" })
        .when("/add2", { templateUrl: "test.html", controller: "secondController" })
        .otherwise({ redirectTo: '/list' });
  }
}
Config.$inject = ['$routeProvider'];
export class CategoryCtrl {
  constructor($window) {
     $window.alert("Hi from CategoryCtrl");
  }
}
CategoryCtrl.$inject = ['$window'];
var app = angular.module("myApp", ['ngRoute']);
app.config(Config);
app.controller('CategoryCtrl', CategoryCtrl);
app.controller('secondController', secondController);
}

This setup works perfectly fine for me. Here is how I integrate the code into my project:

div class="container" style="margin-top:10px;">
     <div class="col-md-3" ng-controller="CategoryCtrl">
        <a href="#/add" style="color:blue; font-weight:bold;">Add New Video</a><br />
        <a href="#/add2" style="color:blue; font-weight:bold;">Add New Video2</a>
     </div>

Everything seems to be running smoothly so far. I also have a separate file named "secondController.ts", which looks like this:

module myApp {
export class secondController {
  constructor($window) {
     $window.alert("Second Controller");
  }
}
secondController.$inject = ['$window'];
}

Despite having already registered this controller in my app.js (app.ts), changing "ng-controller='CategoryCtrl'" to "ng-controller='secondController'" does not seem to work as expected. Interestingly, if I directly copy the code from secondController.ts-file into my app.ts, everything functions correctly. Unfortunately, I am unable to identify the error and would greatly appreciate any assistance.

angularjs typescript

Answer 1

Answer №1

To successfully implement the changes, you must follow these steps:

/// <reference path="../scripts/typings/angularjs/angular.d.ts" />
/// <reference path="secondController.ts" />
/// <reference path="../scripts/typings/angularjs/angular-route.d.ts" />
module myApp {
export class Config {
  constructor($routeProvider: ng.route.IRouteProvider) {
     $routeProvider.when("/add", { templateUrl: "test.html", controller: "CategoryCtrl" })
        .when("/add2", { templateUrl: "test.html", controller: "secondController" })
        .otherwise({ redirectTo: '/list' });
  }
}
Config.$inject = ['$routeProvider'];
export class CategoryCtrl {
  constructor($window) {
     $window.alert("Hi from CategoryCtrl");
  }
}
CategoryCtrl.$inject = ['$window'];
export var app = angular.module("myApp", ['ngRoute']);
app.config(Config);
app.controller('CategoryCtrl', CategoryCtrl);

}

The line below has been removed:

app.controller('secondController', secondController);

Add this new line:

export var app = angular.module("myApp", ['ngRoute']);

This change allows the variable 'app' to be accessed outside of the module.

In your secondController file, include the following line:

myApp.app.controller('secondController', secondController);

Your secondController file should now resemble this:

module myApp {
    export class secondController {
      constructor($window) {
         $window.alert("Second Controller");
      }
    }

secondController.$inject = ['$window'];
myApp.app.controller('secondController', secondController);
}

Prior to making these adjustments, the app.ts file referred to "secondController," with no knowledge of what this variable represented since SecondController.ts had not yet loaded.

By making the 'app' variable public, we can register new controllers after their definition is set.

I suggest applying a similar method to CategoryCtrl by separating its definition into its own file, and then registering it with Angular just as done with secondController.

By doing so, you can easily add and register multiple files without complication.

Answer 2

To successfully implement the changes, you must follow these steps:

/// <reference path="../scripts/typings/angularjs/angular.d.ts" />
/// <reference path="secondController.ts" />
/// <reference path="../scripts/typings/angularjs/angular-route.d.ts" />
module myApp {
export class Config {
  constructor($routeProvider: ng.route.IRouteProvider) {
     $routeProvider.when("/add", { templateUrl: "test.html", controller: "CategoryCtrl" })
        .when("/add2", { templateUrl: "test.html", controller: "secondController" })
        .otherwise({ redirectTo: '/list' });
  }
}
Config.$inject = ['$routeProvider'];
export class CategoryCtrl {
  constructor($window) {
     $window.alert("Hi from CategoryCtrl");
  }
}
CategoryCtrl.$inject = ['$window'];
export var app = angular.module("myApp", ['ngRoute']);
app.config(Config);
app.controller('CategoryCtrl', CategoryCtrl);

}

The line below has been removed:

app.controller('secondController', secondController);

Add this new line:

export var app = angular.module("myApp", ['ngRoute']);

This change allows the variable 'app' to be accessed outside of the module.

In your secondController file, include the following line:

myApp.app.controller('secondController', secondController);

Your secondController file should now resemble this:

module myApp {
    export class secondController {
      constructor($window) {
         $window.alert("Second Controller");
      }
    }

secondController.$inject = ['$window'];
myApp.app.controller('secondController', secondController);
}

Prior to making these adjustments, the app.ts file referred to "secondController," with no knowledge of what this variable represented since SecondController.ts had not yet loaded.

By making the 'app' variable public, we can register new controllers after their definition is set.

I suggest applying a similar method to CategoryCtrl by separating its definition into its own file, and then registering it with Angular just as done with secondController.

By doing so, you can easily add and register multiple files without complication.

Answer 3

Answer №2

It may be beneficial to consolidate them into one file:

/// <reference path="../scripts/typings/angularjs/angular.d.ts" />
/// <reference path="secondController.ts" />
/// <reference path="../scripts/typings/angularjs/angular-route.d.ts" />
module myApp {

export class Config {
  constructor($routeProvider: ng.route.IRouteProvider) {
     $routeProvider.when("/add", { templateUrl: "test.html", controller: "CategoryCtrl" })
        .when("/add2", { templateUrl: "test.html", controller: "secondController" })
        .otherwise({ redirectTo: '/list' });
  }
}
Config.$inject = ['$routeProvider'];

export class CategoryCtrl {
  constructor($window) {
     $window.alert("Hi from CategoryCtrl");
  }
}
CategoryCtrl.$inject = ['$window'];

export class secondController {
  constructor($window) {
     $window.alert("Second Controller");
  }
}
secondController.$inject = ['$window'];

var app = angular.module("myApp", ['ngRoute']);
app.config(Config);
app.controller('CategoryCtrl', CategoryCtrl);
app.controller('secondController', secondController);
}

Motivation

Ensure the script tags are arranged correctly, with the controller defined prior to registering it with angular.

Answer 4

It may be beneficial to consolidate them into one file:

/// <reference path="../scripts/typings/angularjs/angular.d.ts" />
/// <reference path="secondController.ts" />
/// <reference path="../scripts/typings/angularjs/angular-route.d.ts" />
module myApp {

export class Config {
  constructor($routeProvider: ng.route.IRouteProvider) {
     $routeProvider.when("/add", { templateUrl: "test.html", controller: "CategoryCtrl" })
        .when("/add2", { templateUrl: "test.html", controller: "secondController" })
        .otherwise({ redirectTo: '/list' });
  }
}
Config.$inject = ['$routeProvider'];

export class CategoryCtrl {
  constructor($window) {
     $window.alert("Hi from CategoryCtrl");
  }
}
CategoryCtrl.$inject = ['$window'];

export class secondController {
  constructor($window) {
     $window.alert("Second Controller");
  }
}
secondController.$inject = ['$window'];

var app = angular.module("myApp", ['ngRoute']);
app.config(Config);
app.controller('CategoryCtrl', CategoryCtrl);
app.controller('secondController', secondController);
}

Motivation

Ensure the script tags are arranged correctly, with the controller defined prior to registering it with angular.

Exploring the power of developing AngularJS applications using Typescript and the app

Answer №1

Answer №2

Motivation

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