将Cheerio.js添加到Angular 6项目中？ [英] Adding Cheerio.js to an Angular 6 project?

问题描述

我创建了一个全新的Angular 6项目并安装了Cheerio.js：

npm install cheerio

一旦安装了Cheerio.js，我发现将其添加到项目中所要做的就是导入并将其添加到NgModule导入中：

  import'@ angular / platform-b​​rowser'的{BrowserModule};从 @ angular / core导入
 {NgModule}； 
从 ./app.component导入{AppComponent}； 
进口*作为来自 cheerio的cheerio； 
 
 @NgModule（{
声明：[
 AppComponent 
]，
导入：[
 BrowserModule，
 cheerio 
]，
提供者：[]，
引导程序：[AppComponent] 
}）
出口类AppModule {} 
  

但是，执行此操作后，出现TypeScript错误，类似于找不到模块'cheerio'的声明文件。 / p>

我会用这种错误的方式吗？我只需要能够在Angular应用程序中解析一些HTML并阅读Cheerio.js是必经之路。

解决方案

不要在 NgModule 的进口内添加 cheerio ，基本上 imports 数组采用Angular应用程序模块名称，在其中您想在angular应用程序内部使用第三方库。

基本上，您应该在 angular.json cheerio 文件引用$ c>文件脚本选项。这将确保 cheerio 插件已加载到捆绑文件中。现在可以使用了。

 脚本：[
 ...，
 node_modules /cheerio/lib/cheerio.js 
] 
  

然后使用<$ c $ Angular代码中的c> cheerio 插件函数。但是，您还应该安装 cheerio 类型，这样打字稿就不会对此有所抱怨。

  npm i -D @ types / cheerio 
  

I created a brand-new Angular 6 project and installed Cheerio.js:

npm install cheerio

Once Cheerio.js was installed, I figured all I had to do to add it to my project was to import it and add it to the NgModule imports:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import * as cheerio from 'cheerio';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    cheerio
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

However, after doing this, I'm getting a TypeScript error, something along the line of "Could not find a declaration file for module 'cheerio'."

Am I going about this the wrong way? I just need to be able to parse some HTML within the Angular app and read that Cheerio.js was the way to go.

解决方案

Don't add cheerio inside imports of your NgModule, basically imports array takes an Angular application module name, where in you wanted to use third party library inside angular application.

Basically you should add cheerio file reference inside your angular.json file scripts option. This will ensure that cheerio plugin is loaded inside your bundle file. It is ready to use now.

"scripts": [
  ...,
  "node_modules/cheerio/lib/cheerio.js"
]

Then to use cheerio plugin function inside you Angular code. But you should also install cheerio typings, such that typescript would not complain against it.

npm i -D @types/cheerio

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