2017-02-28 31 views
1

我是angular2的新手,我想知道systemjs.config.js文件中存在的所有对象的用法。angularj中的systemjs.config.js

System.config({ 
    paths: { 
     // paths serve as alias 
     'npm:': 'node_modules/' 
    }, 
    // map tells the System loader where to look for things 
    map: { 
     // our app is within the app folder 
     app: 'dist', 
     main: 'main.js', 

     // angular bundles 
     '@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', 

     // other libraries 
     'rxjs': 'npm:rxjs', 
     'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js', 
     'primeng':     'npm:primeng'  
    }, 
    // packages tells the System loader how to load when no filename and/or no extension 
    packages: { 
     app: { main: 'main.js', defaultExtension: 'js' }, 
     api: { defaultExtension: 'js' }, 
     rxjs: {defaultExtension: 'js'}, 
     'node_modules/primeng': { 
      format: 'cjs', 
      defaultExtension: 'js' 
      } 
     } 

}); 

例如上面粘贴的码具有类似路径其可以被用来指定别名,以相同的方式对象我想知道使用地图和地图的所有内部对象,所以上。

回答

3

好了,首先你说不出哪里NPM包的位置,通常在根,因此:

paths: { 
    // paths serve as alias 
    'npm:': 'node_modules/' 
} 

然后你给别名(快捷方式名称)的包,你将使用中,这种情况下角和一些第三方库像rxjs,...

map: { 
     // our app is within the app folder 
     app: 'dist', 
     main: 'main.js', 

     // angular bundles 
     '@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', 

     // other libraries 
     'rxjs': 'npm:rxjs', 
     'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js', 
     'primeng':     'npm:primeng'  
    } 

因此,而不是当您导入库中输入完整的路径(如“故宫:@角/芯/包/ core.umd.js '),你只需要导入你给它的别名('@ angular/core')。在导入别名时,您确定您正在导入正确的库。

'npm:'在图书馆的完整路径前面,指的是你在上面启动的路径'npm'。

+0

对于迟到的回复感到抱歉,您还可以更新systemjs.config.js中包对象的详细信息....谢谢 –

+0

像更改路径一样吗?是的你可以。 – TanguyB

+0

我想问的是,你能否详细解释包里的所有对象的包对象和目的 –

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