Reputation: 605
I am a new learner of angular2. We know in angular2 there is a way to reference a file by relative path which by defining moduleId : module.id
in component meta data. However I tried to to by that way and always get the following error:
Error: (SystemJS) module is not defined
I have built a plunker here: a simple angular2 app
The file structure is as below, very simple:
Content of each part is as below:
config.js:
System.config({
//use typescript for compilation
transpiler: 'typescript',
//typescript compiler options
typescriptOptions: {
emitDecoratorMetadata: true,
module: "commonjs"
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
//map tells the System loader where to look for things
map: {
'app': './app',
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'@angular/core/testing': 'npm:@angular/core/bundles/core-testing.umd.js',
'@angular/common/testing': 'npm:@angular/common/bundles/common-testing.umd.js',
'@angular/compiler/testing': 'npm:@angular/compiler/bundles/compiler-testing.umd.js',
'@angular/platform-browser/testing': 'npm:@angular/platform-browser/bundles/platform-browser-testing.umd.js',
'@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic-testing.umd.js',
'@angular/http/testing': 'npm:@angular/http/bundles/http-testing.umd.js',
'@angular/router/testing': 'npm:@angular/router/bundles/router-testing.umd.js',
'rxjs': 'npm:rxjs',
'typescript': 'npm:typescript/lib/typescript.js'
},
//packages defines our app package
packages: {
app: {
main: 'main.ts',
defaultExtension: 'ts'
},
rxjs: {
defaultExtension: 'js'
}
}
});
app.component.ts:
import { Component } from '@angular/core';
@Component({
moduleId: module.id,
selector: 'app',
templateUrl: 'app.component.html'
})
export class AppComponent {
}
For other file, you can refer to the plunker. I have set module: "commonjs"
in typescriptOptions. Is there anything wrong with my codes?
Upvotes: 2
Views: 2469
Reputation: 443
If you want to use module.id you can install the @types/node package as a dev dependency.
This will recognise module as a type.
https://www.npmjs.com/package/@types/node
Upvotes: 0
Reputation: 89
It's work for me Angular@4.x.x, Typescript@2.x.x, SystemJS@0.20.12
declare var __moduleName: string;
import { Component } from '@angular/core';
@Component({
moduleId: __moduleName,
selector: 'app',
templateUrl: 'app.component.html'
})
export class AppComponent {
}
Upvotes: 1