typescript import { node } from types

Exploring the possibilities with an electron application developed in typescript. The main focus is on finding the appropriate approach for importing an external module.

Here is my typescript configuration:

{
  "compilerOptions": {
    "target": "es6",
    "module": "commonjs",
    "noImplicitAny": false,
    "sourceMap": true,
    "removeComments": false,
    "outDir": "../build"
  },
  "exclude": [
    "node_modules",
    "typings/browser.d.ts",
    "typings/browser"
  ]
}

I have divided my code into 2 classes, each residing in its own file.

class person {
    private job: job;
    public setJob(name: string) {
        this.job = new job(name);
    }
}

class job {
    private name: string;
    constructor(name : string) {
        var externalTool = require('external-tool');
        //Perform actions using the external tool.
    }
}

In addition to this, there is a TypeScript file dedicated to the external tool:

declare module ExternalTool {
    interface Something {
        doSomethingWithName(name:string): string;
    }
}

declare module "external-tool" {
    export = ExternalTool;
}

The 'require' function references 'https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/node/node.d.ts'

Presently, the 'externalTool' variable is of type 'any'. How can I instruct Typescript to recognize it as the correct type? Switching from require to "import externalTool = require('external-tool')" results in the person class losing recognition of the job class.

What would be the most effective approach in this scenario?

Answer №1

To resolve the problem of your

the person class no longer recognizes the job class
, ensure to include the statement
import externalTool = require('external-tool');
at the beginning of the file where your job class is located. Additionally, make sure that your ExternalTool components are stored in a .d.ts file.

Answer №2

It seems I may have been a bit off track when it came to utilizing TypeScript in multiple files.

After doing some research and gaining a better understanding, I realized that the key to my solution was correctly setting the export values and then importing them into the necessary files.

person.ts

import job = require('./job');
class person {
    private job: job;
    public setJob(name: string) {
        this.job = new job(name);
    }
}
export = person;

job.ts

import externalTool = require('external-tool');
class job {
    private name: string;
    constructor(name: string) {
      //  var externalTool = require('external-tool');
        //Do stuff with external tool.
    }
}
export = job;

For some reason, I mistakenly thought that TypeScript would handle this automatically for me.

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