DefinitelyTyped typings incompatible with ES6 emit: Import assignment

[alexeagle]

Similar to #2929

Using released TS 1.5.3,
Trying to type-check the ES6 emit for angular, I run into:

  angular2/typings/node/node.d.ts (273, 5): Import assignment cannot be used when targeting ECMAScript 6 or higher. Consider using 'import * as ns from "mod"', 'import {a} from "mod"' or 'import d from "mod"' instead.

Because of syntax here:
https://github.com/borisyankov/DefinitelyTyped/blob/983126e131a2b81739053d60e4bbdbb46d6577b7/node/node.d.ts#L425

Can this rule be relaxed? Do all typings need to be updated?

[alexeagle]

https://gist.github.com/robertpenner/7d48f184df1236c4fdca is a workaround.
Thanks @robertpenner

[mhegazy]

The error is there as there is no valid ES6 construct that maps to the export= semantics; so we do not know how to emit it. However, we could relax the constraint for ambient module declarations as there is no code emit impact.

[ludamad]

In case this is helpful for anyone, I ended up using this bit of hack in my setup script to rewrite imports:

        for file in DefinitelyTyped/*/*.ts ; do
            sed -i "s@import *\(.*\)= *require(\([\"'].*[\"']))@import * as \1from \2@g"  "$file"; 
        done

[sudharsanmit]

@mhegazy I am getting the error when using the below code in typescript. I used the guide here - https://www.typescriptlang.org/docs/handbook/migrating-from-javascript.html

declare function require(path: string): any;
import googleMaps = require('@google/maps');

        Import assignment cannot be used when targeting ECMAScript 2015 modules. Consider using 'import * as ns from
        "mod"', 'import {a} from "mod"', 'import d from "mod"', or another module format instead.
   L9:  declare function require(path: string): any;
  L10:  import googleMaps = require('@google/maps');
        Cannot find module '@google/maps'.
   L9:  declare function require(path: string): any;
  L10:  import googleMaps = require('@google/maps');

tsconfig.json
"module": "es2015",
"moduleResolution": "node",
"target": "es5"

[mhegazy]

Use var instead of import

[sudharsanmit]

Thank you. It worked! :)

…

On Wed, Dec 7, 2016 at 9:16 PM, Mohamed Hegazy ***@***.***> wrote: Use var instead of import — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#4170 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AP-IYbLqeHAz5H_cQ-MUeR8nm8yKUtIAks5rF4S0gaJpZM4Fma9v> .