[@types] underscore's global definition does not work with module

[HerringtonDarkholme]

I wonder whether this is an intended feature. Nevertheless I think it worth mentioning

Code:

With @types/underscore installed.

a.ts

export var a = 123

b.ts

import {a} from './a'
_ // access the global underscore variable 

tsc@2.0.2 complains that Identifier '_' must be imported from a module
If import statement is removed, everything works.

My project relies on a global underscore imported by a script tag. Indeed the build system I use(Webpack) can be configured to import underscore from global, but it requires more changes since I have used tsd to install underscore definition and that works well.

This works if I switch to underscore definition file in master branch. cc @RyanCavanaugh, any idea?

[HerringtonDarkholme]

It seems this is intended. Should we close this? @vvakame

microsoft/TypeScript#10638 (comment)

[mbarakaja]

I am facing a similar issue with angular. When I import interface definition like;

import {IScope, IServiceProvider, IHttpService} from 'angular';`

The compiler throws me the same error, and not just that, the editor loses code completion for angular global variable. This wasn't happening with typings package manager.