how to properly create and import node modules in typescript

Question

How do I create node modules in typescript to be imported in other typescript files? I have searched and searched but cannot find how to do this properly.

I want to create a typescript module that exports some functions that I can import using require into my app.ts. I am using 'typescript-require'. Here is what I am doing (simplified):

app.ts

require('typescript-require');
import config = require('./config');

console.log(config.GetDefaultConfiguration());

config.ts

module config {
    var defaultConfig = "default configuration";
    export function GetDefaultConfiguration() {
        return defaultConfig;
    }
}

config.d.ts

declare module config {

}

But I get "TypeError: Object # has no method 'GetDefaultConfiguration'".

What am I missing?

I know this is a pretty old question, but for anyone else stumbling across it (as I did this past week), you might find this typescript boilerplate project helpful: github.com/bitjson/typescript-starter — Jason Dreyzehner
– Jason Dreyzehner, Commented Feb 15, 2017 at 1:01

basarat · Accepted Answer · 2015-01-09 00:40:55Z

1

I am using 'typescript-require'

Don't use it. Just compile to JS from TSC and then run the JS.

I get "TypeError: Object # has no method 'GetDefaultConfiguration'".

You need to export from config.ts:

var defaultConfig = "default configuration";
export function GetDefaultConfiguration() {
     return defaultConfig;
}

Note: don't use internal modules with external modules. If you are unclear about the difference. Watch this : https://www.youtube.com/watch?v=KDrWLMUY0R0&hd=1

answered Jan 9, 2015 at 0:40

basarat

278k60 gold badges475 silver badges528 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Raghu Over a year ago

Thanks Basarat. Sounds weird but I tried that earlier and got compile errors. I am building my application in VS2013 using the node.js tools for Visual Studio and the build system has been pretty erratic. I did a clean build and with your suggested changes its working now.

basarat Over a year ago

I use grunt github.com/TypeStrong/grunt-ts simply because the Visual Studio compile pipeline for TypeScript is suboptimal. Note that the TypeScript team itself uses jake (not msbuild) to manage its compile

Raghu Over a year ago

Thanks for the pointer. I will take a look at grunt and jake.

Collectives™ on Stack Overflow

how to properly create and import node modules in typescript

app.ts

config.ts

config.d.ts

1 Answer 1

3 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

app.ts

config.ts

config.d.ts

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related