在 tsconfig.app.json 中为 angular 项目定义路径

Question

The project was generated via angular CLI. I have the following folder structure:

I want to define a path to a bar folder in tsconfig.app.json and import Car to Garage .

My tsconfig.app.json :

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    ...
    "baseUrl": "./",
    "paths" : {
      "@bar" : ["foo/bar"]
    },
    ...
  },
  ...
}

My Garage.ts :

import { Car } from "@bar/Car";
export class Garage {}

In garage.ts I have an error:

Cannot find module '@bar/car'.

Answer 1

You need to define paths like that:

   "paths" : {
      "@bar/*" : [
          "foo/bar/*"
      ]
    },

For more information read

• Configuring TypeScript compiler

Answer 2

Please do not forget to put the baseUrl first before adding the paths . I spent hours trying to figure out where I was wrong.

"baseUrl": "./",
"paths": {
  ...
}

Answer 3

I think this might work

    {
  "extends": "../tsconfig.json",
  "compilerOptions": {
    ...
    "baseUrl": "./",
    "paths" : {
      "@bar" : ["foo/bar"],
      "@environment/*": ["environments/*"],
        "@shared/*": ["app/_shared/*"],
        "@helpers/*": ["helpers/*"]
       //you can define multiple paths inside this 
    },
    ...
  },
  ...
}

and the question looks like duplicate of question

Answer 4

在 VS 代码中停止抱怨：CMD + SHIFT + P 然后输入 reload 或 Reload Project 来停止 webstorm 中的抱怨：使缓存失效（文件 | 使缓存失效，失效并重新启动）