Javascript Angular 5字体脚本-包括ES2015代码

我正在安圭拉5应用程序，我必须包括图书馆没有可用的打字。我按照angular cli中概述的步骤介绍了如何包括第三方库，特别是标题“如果库在@types/上没有可用的打字，您仍然可以通过手动添加打字来使用它：”

这就是我的代码在使用后的样子-

src/typings.d.ts

/* SystemJS module definition */
declare var module: NodeModule;
declare module 'dmn-js';
interface NodeModule {
  id: string;
}

src/app/app.component.ts

import { Component, OnInit } from '@angular/core';
import {HttpClient} from '@angular/common/http';
import * as DmnJS from 'dmn-js';


@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
  title = 'DMN';

  constructor(private http: HttpClient){    
  }

  ngOnInit(): void {
    var viewer = new DmnJS ({ container: 'body' });
    var dmnXML; //DMN 1.1 xml
    viewer.importXML(dmnXML, this.handleError);
  }

   handleError(err: any) {
    if (err) {
      console.warn('Ups, error: ', err);
    }else {
      console.log('rendered');
    }
  }

  load(): void {
    const url = '/assets/dish-decision.dmn';
    this.http.get(url, {
      headers: {observe: 'response'}, responseType: 'text'
    }).subscribe(
      (x: any) => {
        console.log('Fetched XML, now importing: ', x);
        //this.modeler.importXML(x, this.handleError);
      },
      this.handleError
    );
  }

  save(): void {
    //this.modeler.saveXML((err: any, xml: any) => console.log('Result of saving XML: ', err, xml));
  }

}

constructor(private http: HttpClient ){
    this.http.get('../assets/val.xml',{responseType: 'text'}).subscribe(x=>{
     var xml= x; // my DMN 1.1 xml
     //var myContainer = document.getElementsByClassName('canvas');
    var viewer = new Viewer({
      container: '.canvas'
    });

    viewer.importXML(xml, function(err) {
     console.log('*********************');
      if (err) {
        console.log('error rendering', err);
      } else {
        viewer
        .getActiveViewer()
        .get('canvas')
          .zoom('fit-viewport');
      }
    });
    });

  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-drd.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-decision-table.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-literal-expression.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-font/css/dmn.css">

现在，当我编译代码时，我得到以下错误。我不确定需要做什么来解决这个问题，因为我遵循了所有步骤

ERROR in ./node_modules/dmn-js-drd/lib/Viewer.js                                                                                                                                            
Module parse failed: Unexpected token (175:4)                                                                                                                                               
You may need an appropriate loader to handle this file type.                                                                                                                                
|     additionalModules,                                                                                                                                                                    
|     canvas,                                                                                                                                                                               
|     ...additionalOptions                                                                                                                                                                  
|   } = options;                                                                                                                                                                            
|                                                                                                                                                                                           
ERROR in ./node_modules/dmn-js-shared/lib/base/Manager.js                                                                                                                                   
Module parse failed: Unexpected token (292:16)                                                                                                                                              
You may need an appropriate loader to handle this file type.                                                                                                                                
|   }                                                                                                                                                                                       
|                                                                                                                                                                                           
|   _viewsChanged = () => {                                                                                                                                                                 
|     this._emit('views.changed', {                                                                                                                                                         
|       views: this._views,                                                                                                                                                                 
ERROR in ./node_modules/dmn-js-decision-table/lib/Viewer.js                                                                                                                                 
Module parse failed: Unexpected token (75:6)                                                                                                                                                
You may need an appropriate loader to handle this file type.                                                                                                                                
|       modules,                                                                                                                                                                            
|       additionalModules,                                                                                                                                                                  
|       ...config                                                                                                                                                                           
|     } = options;                                                                                                                                                                          
|                                                                                                                                                                                           
ERROR in ./node_modules/dmn-js-literal-expression/lib/Viewer.js                                                                                                                             
Module parse failed: Unexpected token (77:6)                                                                                                                                                
You may need an appropriate loader to handle this file type.                                                                                                                                
|       modules,                                                                                                                                                                            
|       additionalModules,                                                                                                                                                                  
|       ...config                                                                                                                                                                           
|     } = options;                                                                                                                                                                          
|                                                                                                                                                                                           

webpack: Failed to compile.   

Angular cli wiki告诉您现在如何添加，正如您已经遵循的那样 您可以访问第三方库，但这里dmn js需要插件 它可以支持（扩展运算符和其他内部 变换等）。dmn js使用巴贝尔[如果你观察到它是 在dmn*]的每个文件夹中都有.babelrc文件

为了支持dmn js，我们需要配置webpack。 花了相当长的时间后，结果如下：

在您的.Component.ts中

import { Component, OnInit } from '@angular/core';
import {HttpClient} from '@angular/common/http';
import * as DmnJS from 'dmn-js';


@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
  title = 'DMN';

  constructor(private http: HttpClient){    
  }

  ngOnInit(): void {
    var viewer = new DmnJS ({ container: 'body' });
    var dmnXML; //DMN 1.1 xml
    viewer.importXML(dmnXML, this.handleError);
  }

   handleError(err: any) {
    if (err) {
      console.warn('Ups, error: ', err);
    }else {
      console.log('rendered');
    }
  }

  load(): void {
    const url = '/assets/dish-decision.dmn';
    this.http.get(url, {
      headers: {observe: 'response'}, responseType: 'text'
    }).subscribe(
      (x: any) => {
        console.log('Fetched XML, now importing: ', x);
        //this.modeler.importXML(x, this.handleError);
      },
      this.handleError
    );
  }

  save(): void {
    //this.modeler.saveXML((err: any, xml: any) => console.log('Result of saving XML: ', err, xml));
  }

}

constructor(private http: HttpClient ){
    this.http.get('../assets/val.xml',{responseType: 'text'}).subscribe(x=>{
     var xml= x; // my DMN 1.1 xml
     //var myContainer = document.getElementsByClassName('canvas');
    var viewer = new Viewer({
      container: '.canvas'
    });

    viewer.importXML(xml, function(err) {
     console.log('*********************');
      if (err) {
        console.log('error rendering', err);
      } else {
        viewer
        .getActiveViewer()
        .get('canvas')
          .zoom('fit-viewport');
      }
    });
    });

  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-drd.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-decision-table.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-literal-expression.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-font/css/dmn.css">

在.Component.html中

<body >
<div class="canvas" style="width:100vh;height:100vh ;padding-left:100px"></div>
  </body>

在index.html中添加样式表链接

import { Component, OnInit } from '@angular/core';
import {HttpClient} from '@angular/common/http';
import * as DmnJS from 'dmn-js';


@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
  title = 'DMN';

  constructor(private http: HttpClient){    
  }

  ngOnInit(): void {
    var viewer = new DmnJS ({ container: 'body' });
    var dmnXML; //DMN 1.1 xml
    viewer.importXML(dmnXML, this.handleError);
  }

   handleError(err: any) {
    if (err) {
      console.warn('Ups, error: ', err);
    }else {
      console.log('rendered');
    }
  }

  load(): void {
    const url = '/assets/dish-decision.dmn';
    this.http.get(url, {
      headers: {observe: 'response'}, responseType: 'text'
    }).subscribe(
      (x: any) => {
        console.log('Fetched XML, now importing: ', x);
        //this.modeler.importXML(x, this.handleError);
      },
      this.handleError
    );
  }

  save(): void {
    //this.modeler.saveXML((err: any, xml: any) => console.log('Result of saving XML: ', err, xml));
  }

}

constructor(private http: HttpClient ){
    this.http.get('../assets/val.xml',{responseType: 'text'}).subscribe(x=>{
     var xml= x; // my DMN 1.1 xml
     //var myContainer = document.getElementsByClassName('canvas');
    var viewer = new Viewer({
      container: '.canvas'
    });

    viewer.importXML(xml, function(err) {
     console.log('*********************');
      if (err) {
        console.log('error rendering', err);
      } else {
        viewer
        .getActiveViewer()
        .get('canvas')
          .zoom('fit-viewport');
      }
    });
    });

  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-drd.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-decision-table.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-js-literal-expression.css">
  <link rel="stylesheet" href="https://unpkg.com/dmn-js@4.3.0/dist/assets/dmn-font/css/dmn.css">

Typings.d.ts->您已经添加了

安装依赖项：

/* SystemJS module definition */
declare var module: NodeModule;
declare module 'dmn-js';
interface NodeModule {
  id: string;
}

npm i——保存开发巴贝尔插件地狱 巴贝尔插件变换对象静止扩散 babel插件转换类属性 巴贝尔插件转换对象分配

希望这有帮助

参考文献1：

参考文献2：

---

参考3:

看起来您正在使用webpack，但没有告诉webpack加载

.js

文件。问题在于加载web包。也许这个链接可以帮助我使用angular cli创建项目。我没有看到由angular cli创建的webpack.config.js。wiki不会让webpack单独知道.js文件。我使用npm install dmn js来安装库。使用angular.cli时，将隐藏网页设置。因此，您可以使用ng eject（但在它之前读取）或使用angular-cli.json节脚本。您可以在其中包含javascrpt文件。您应该向库所有者解决此问题。将es6代码作为库提供不是最佳做法，因为大多数工具/设置都将节点_模块排除在编译之外，angular cli就是其中之一。为了供您参考，创建了git repo:！！！这太棒了非常感谢您花时间解决此问题。它现在正在工作。我不得不下载额外的npm依赖项以使其正常工作-npm安装-保存dev babel loader babel-preset-stage-2 babel-preset-es2015谢谢你！！！，遇到了巴别塔，还没用过呢！！！您可以将此添加到dnm js论坛：）我实际上刚刚在那里发布了您的解决方案的参考：-）