angular6 - Is it possible to read env variable in Angular application

Question

I have an environment.ts file in which I want to store if the project was built in test mode or dev mode. At the moment, I store the value as a key-value pair

export const environment = {
...
testMode:false
...
}

Is it possible that I provide the value (false or true) from a build file (say package.json) or read from an environment variable?

标签： angular6

Answer 1

您将拥有您的环境文件，

环境.ts：

export const environment = {  
  testMode: false,
  KEY_TO_READ: 'test'
};

它已导出，因此您可以导入它：

import { environment } from './environment';

export class MyappAppComponent {  
  title = 'myapp works!';
  KEY_TO_READ = environment.KEY_TO_READ;
}