Error in AngularJS and TypeScript: Property 'module' is undefined and cannot be read

I'm attempting to incorporate TypeScript into my AngularJS 1.x application.

Currently, my application utilizes Webpack as a module loader. I configured it to handle the TypeScript compilation by renaming all *.js source files to *.ts, and managed to successfully compile without errors, generating the JavaScript output file.

The issue arises when running the application in the browser, resulting in this console error:

Uncaught TypeError: Cannot read property 'module' of undefined

In addition, I encounter:

Uncaught Error: [$injector:modulerr] Failed to instantiate module myModuleName due to: Error: [$injector:nomod] Module 'myModuleName' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.

This seems to occur because the object angular is null for some reason, causing issues when trying to access angular.module.

Despite importing angular from 'angular/angular', the problem persists after successful compilation.

You can find the complete source code here.

Webpack output:

Hash: 824157db8ed6acf47fc1
Version: webpack 2.2.1
Time: 2242ms
                Asset     Size  Chunks                    Chunk Names
    othello-bundle.js  1.27 MB       0  [emitted]  [big]  app
othello-bundle.js.map  1.51 MB       0  [emitted]         app
   [0] ./~/angular/angular.js 1.24 MB {0} [built]
   [5] ./app/services/othello_AI.ts 8.65 kB {0} [built]
   [6] ./app/services/othello_handler.ts 9.3 kB {0} [built]
   [7] ./app/index.ts 723 bytes {0} [built]
    + 4 hidden modules

Answer №1

After much searching, I have discovered the resolution.

When working with TypeScript, it is necessary to import AngularJS using:

import * as angular from 'angular';

The issue arose from my previous use of importing it in ES6 format:

import angular from 'angular';

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