Error when importing untyped JS modules

[balajikris]

TypeScript Version: 2.2.1

Steps

1. In a simple TS project in VSCode, add "adal-node": "^0.1.22", to package.json and run npm install. This is a JS library with no types.
2. Import the library in your index.ts as below

Code

import adal from "adal-node";

Expected behavior:
Per this bug's resolution #3019 this code should compile with no errors

Actual behavior:
tsc.exe: 'Could not find a declaration file for module 'adal-node'. 'e:/proj/node_modules/adal-node/lib/adal.js' implicitly has an 'any' type.'

References:
see #3019 and all its linked bugs

[balajikris]

/cc: @mhegazy

[unional]

Because you have turned on noImplicitAny. You need to get around it by doing declare module 'adal-node' (or declare module "*", I have yet to try this myself)

[unional]

#13348

[balajikris]

oops! you're right that I have noImplicitAny compiler option set in my tsconfig.json. Totally forgot about it as its one of my default configs to writing TS.

I think I can work with the solution you posted on the other thread. Thanks for the quick feedback ! Appreciate it.

[balajikris]

I tried the suggestions mentioned in the linked bug like so:

In index.ts i added this code:

declare module 'adal-node/*'{
    var _a: any;
    export = _a;
}

and i get this error:
tsc.exe : Invalid module in augmentation, module 'adal-node/*' cannot be found. Can someone help me how to do this correctly?

[masaeedu]

@balajikris Have you tried:

declare module 'adal-node' {
    var _a: any;
    export = any;
}

instead?

[balajikris]

@masaeedu : Thanks for the comment. Yes, I did try that earlier. It also errored out, but a slightly different message.

tsc: 'Invalid module name in augmentation. Module 'adal-node' resolves to an untyped module at 'e:/proj/node_modules/adal-node/lib/adal.js', which cannot be augmented.'

[billti]

So it's loading the module via the .js file also it seems. Do you have 'allowJs' set in your project config?

[balajikris]

@billti : Thank you for the hint. I tried after setting allowJs: true and the error message remains the same as above.

[aluanhaddad]

declare module 'adal-node/*'{
    var _a: any;
    export = any;
}

did you mean

declare module 'adal-node/*'{
    var _a: any;
    export = _a;
}

?

[balajikris]

@aluanhaddad -- yes ofcourse. sorry, that was a typo! updated my post

[TAGC]

Is there any way to do something simple like import * as BabiliPlugin from "babili-webpack-plugin"; with noImplicitAny enabled without getting warning TS7016 ("could not find a declaration file...implicitly has an 'any' type")?