如何连接我的 angular2 应用程序 javascript 文件

2022-01-12 00:00:00 angularjs javascript angular gulp typescript

对于我的 angular2 typescript 应用程序，我将所有 js 文件合并到一个 app.min.js 文件中，然后将该文件 System.import 到我的 index.html 页面.

For my angular2 typescript app I concat all my js files into one app.min.js file, then System.import this file to my index.html page.

然后，我的控制台日志中出现多个匿名 System.register 调用在同一个模块文件中错误.

I then get a Multiple anonymous System.register calls in the same module file error in my console log.

我将所有 Javascript 文件(不是库)放入 app.min.js 中，然后在我的 index.html 页面上使用 system.import 导入该文件以导入该 js 文件.

I put all my Javascript files (not libraries) into app.min.js and then on my index.html page I then import the file using system.import to import that js file.

当我将所有 Javascript 文件合并到一个文件中时，我会按照一定的顺序进行操作.

When I concat all the Javascript files into one file I do them in a certain order.

也许我的配置中缺少一些参考或设置?

Maybe I'm missing some references or settings in my configs?

这是我的 index.html 页面:

<!DOCTYPE html>
<html lang="en" prefix="og: http://ogp.me/ns#" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <base href="/"></base>

    <meta charset="UTF-8">
    <meta name="fragment" content="!"/>
    <meta content="IE=edge, chrome=1" http-equiv="X-UA-Compatible"/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0, minimum-scale=0.5, user-scalable=yes"/>


    <!-- inject:css -->    
       <link rel="stylesheet" href="/src/css/styles.af010955.css">    
    <!-- endinject -->

    <!-- Js libs -->    
    <script type="text/javascript" src="https://cdn.jsdelivr.net/lodash/4.11.2/lodash.min.js"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>        
    <script type="text/javascript" src="/bootstrap.js"></script>    

    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.34.2/es6-shim.min.js"></script>    
    <script type="text/javascript" src="/safariPolyFix.js"></script>    
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.18.4/system.src.js"></script>   

    <script>
        System.config({
            transpiler: 'typescript',
            defaultJSExtensions: true,  
            typescriptOptions: {
                emitDecoratorMetadata: true,
            },          
            packages: {
                'angular2-google-maps': {
                  defaultExtension: 'js'
                }
            }
        });       
    </script>

    <script type="text/javascript" src="/angular2_google_maps.js"></script>

    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/angular2-polyfills.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/tools/typescript.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/Rx.js"></script>

    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/angular2.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/router.js"></script>
    <script type="text/javascript" src="https://code.angularjs.org/2.0.0-beta.0/http.js"></script>  

    <script type="text/javascript" src="/firebase/firebaseNew.js"></script>

  </head>

  <body id="container">

    <app></app>

    <script type="text/javascript">  
      System.import('/app/app.min.js');
    </script>

  </body>
</html>

这是我的 gulp 文件:

var gulp = require('gulp');
var concat = require('gulp-concat');

gulp.task('app', function() {
    return gulp.src(['src/app/app.component.js', 'src/app/*.js', 'src/app/filters/*.js', 'src/app/models/**/*.js', 'src/app/components/**/*.js', 'src/app/services/**/*.js'])
        .pipe(concat('app.min.js'))
        .pipe(gulp.dest('src/app'));
});

gulp.task('default', ['app']);

这是我的 tsconfig.json

{
  "compilerOptions": {
    "target": "ES5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false
  },
  "exclude": [
    "node_modules"
  ]
}

这是我的错误屏幕截图:

这是浏览器控制台中的源文件:

推荐答案

其实你不能自己concat typescript编译器生成的js文件.

In fact you can't concat js files by your own that are generated by the typescript compiler.

如果您想将它们全部放在一个文件中，则需要在 tsconfig.json 文件中利用编译器的 outFile 属性:

If you want to have all of them in a single file, you need to leverage the outFile property of the compiler in the tsconfig.json file:

{
  "compilerOptions": {
    "target": "ES5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false,
    "outFile": "app.js" <-------
  },
  "exclude": [
    "node_modules"
  ]
}

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