Add TypeScript declaration files for ES Modules

[nunoarruda]

Description of the feature

Please add TypeScript declaration files for Highcharts ES Modules. Without them, we can't use Highcharts ES Modules on TypeScript projects, or at least not with the default settings in Angular projects (which I'm using in my use case):

As a workaround, I'm re-using the Highcharts UMD namespace as a type and creating the declaration file myself at src/index.d.ts:

declare module 'highcharts/es-modules/masters/*' {
  var G: typeof Highcharts; // Re-uses UMD namespace as a type
  export default G;
}

Library related to the feature

All

Proof of Concept/Live example for the feature

As far as my knowledge goes, I believe you guys have 2 options:

1. Create declaration files for ES Modules by re-using the Highcharts UMD namespace as shown above
2. Copy/paste your existing declaration files for UMD/CommonJS/AMD into highcharts/es-modules/masters/* and replace export as namespace x with export default x.

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[bre1470]

Hello @nunoarruda,
Thank you for the feedback. We will fix it with one of the next releases.