[英]Angular 5 TypeScript- including ES2015 code
I am working on angualar 5 app where I have to include dmn-js library which doesn't have typings available. 我正在研究angualar 5应用程序,我必须包含dmn-js库,它没有可用的类型。 I followed the steps outlined in angular-cli wiki on how to go about including 3rd party libraries, specifically one outlined under heading - "If the library doesn't have typings available at @types/, you can still use it by manually adding typings for it:"
我按照angular-cli wiki中概述的步骤了解如何包括第三方库,特别是在标题下标题 - “如果库在@ types /中没有可用的类型,您仍然可以通过手动添加类型来使用它为了它:”
This is how my code now looks like after - 这就是我的代码现在的样子 -
src/typings.d.ts SRC / typings.d.ts
/* SystemJS module definition */
declare var module: NodeModule;
declare module 'dmn-js';
interface NodeModule {
id: string;
}
src/app/app.component.ts SRC /应用程序/ 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));
}
}
Now when I compile the code, I get below error. 现在当我编译代码时,我得到以下错误。 I am not sure what needs to be done to resolve the issue since I followed all steps.
自从我遵循所有步骤以来,我不确定要解决这个问题需要做些什么。
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 tells how to add, as you have followed it already,now you can access the third party lib, but here dmn-js requires plugins which can support( spread operators,and other internal transforms,etc.).
Angular-cli wiki告诉你如何添加,就像你已经按照它一样,现在你可以访问第三方库,但是这里dmn-js需要可以支持的插件(扩展运算符和其他内部转换等)。 and dmn-js uses babel [if you observe that it is having .babelrc files in each folder of dmn* ].
和dmn-js使用babel [如果你发现它在dmn *的每个文件夹中都有.babelrc文件]。
In order to support the dmn-js we need to configure webpack. 为了支持dmn-js,我们需要配置webpack。 After spending decent amount of time here is the result :
在这里花了相当多的时间后,结果是:
In your.Component.ts 在your.Component.ts中
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');
}
});
});
In your.Component.html 在your.Component.html中
<body >
<div class="canvas" style="width:100vh;height:100vh ;padding-left:100px"></div>
</body>
In Webpack.config.js (use ng eject , if not exists) Add a rule in module -> rules
在Webpack.config.js中(使用ng eject,如果不存在)在模块 - >规则中添加规则
{ test: /\.js$/,
exclude: /node_modules\/(?!(dmn-js|dmn-js-drd|dmn-js-shared|dmn-js-decision-table|table-js|dmn-js-literal-expression|diagram-js)\/).*/,
loader: 'babel-loader',query: {presets: ["react","es2015","stage-0"]}
}
In index.html add stylesheet links 在index.html中添加样式表链接
<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 -> you have added already !! Typings.d.ts - >你已经添加!!
Install the depenencies: 安装附件:
npm i --save-dev babel-plugin-inferno babel-plugin-transform-object-rest-spread babel-plugin-transform-class-properties babel-plugin-transform-object-assign
npm i --save-dev babel-plugin-inferno babel-plugin-transform-object-rest-spread babel-plugin-transform-class-properties babel-plugin-transform-object-assign
Hope this helps !!! 希望这可以帮助 !!!
Ref1: https://github.com/bpmn-io/dmn-js-examples/tree/master/bundling 参考1: https : //github.com/bpmn-io/dmn-js-examples/tree/master/bundling
Ref2: Error: Missing class properties transform Ref2: 错误:缺少类属性转换
Ref3: https://github.com/webpack/webpack/issues/2902 参考3: https : //github.com/webpack/webpack/issues/2902
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