打字稿导入模块作为变量不起作用

Question

I am trying to import a variable from another file using and giving alias name for that but typescript throwing error alias name not defined.

Ex:

import { headerItems as TestHeader } from './headers';

Typescript version: 3.2.4
Ng cli: 7.3.7
webpack: 4.19.0

Thanks in advance!

Answer 1

Refer https://github.com/angular/angular-cli/issues/13212 and https://github.com/IgorMinar/angular/commit/b7313ac2c619e96617258606d090f42ad73c44c0

It's unclear why import as results in the aliases to be undefined.

Plain tsc seems to do the right thing and emits the correct code, so it might be some kind of interaction in @angular/cli or webpack that are causing the failure.

This should be investigated separately from the tsc update in angular/angular. See angular/angular-cli#13212

-- Igor Minar