Angular 6 - 尝试为应用程序提供服务时未定义进程 [英] Angular 6 - process is not defined when trying to serve application

问题描述

当我尝试使用 cosmicjs 为我的 angular 6 应用程序提供服务时出现以下错误:

I am getting the following error when I try to serve my angular 6 application using cosmicjs:

Uncaught ReferenceError: process is not defined
    at Object../node_modules/cosmicjs/dist/index.js (index.js:6)
    at __webpack_require__ (bootstrap:81)
    at Object../src/app/app.component.ts (main.js:94)
    at __webpack_require__ (bootstrap:81)
    at Object../src/app/app.module.ts (app.component.ts:9)
    at __webpack_require__ (bootstrap:81)
    at Object../src/main.ts (environment.ts:18)
    at __webpack_require__ (bootstrap:81)
    at Object.0 (main.ts:12)
    at __webpack_require__ (bootstrap:81)

我的最新理论与 process.env 属性未定义有关.

My latest theory is something to do with the process.env property being undefined.

我正在学习本教程此处

我的确切代码可以在这里

本教程似乎使用了旧版本的 angular，它使用 .angular-cli.json 而不是新的 angular.json，我认为这是尝试指定环境变量时出现的问题的一部分.

The tutorial seems to be using an older version of angular that uses .angular-cli.json instead of the new angular.json and I think this is part of the issue in trying to specify the environment variables.

推荐答案

在 polyfill.ts 中，添加这一行:

In polyfill.ts, add this line:

(window as any).process = {
  env: { DEBUG: undefined },
};

参考:https://github.com/algolia/algoliasearch-client-javascript/问题/691

或者npm i -S process，然后把这个添加到polyfill.ts:

Or npm i -S process, then add this to polyfill.ts:

import * as process from 'process';
window['process'] = process;

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