How to export object in TypeScript from Types.ts file

Question

I have following declaration in the end of Types.ts:

export let selectItemList = {
  selectedInvoiceProvider: new SelectItemData<InvoiceProvider>(
    {
      "-": new SelectItemDataOption<InvoiceProvider>(InvoiceProvider.No),
      Billingo: new SelectItemDataOption<InvoiceProvider>(
        InvoiceProvider.Billingo
      ),
      "szamlazz.hu": new SelectItemDataOption<InvoiceProvider>(
        InvoiceProvider.Szamlazzhu
      ),
    },
    InvoiceProvider.No
  ),

But when I save and run I got this error:

Failed to compile.

./src/Types.ts Line 0: Parsing error: Cannot read property 'map' of undefined

If I remove export ALL WORKS, STRANGE

[EDIT]

I tried as Julian Kleine suggested, without any success:

const selectItemList = {
  selectedInvoiceProvider: new SelectItemData<InvoiceProvider>(
    {
      "-": new SelectItemDataOption<InvoiceProvider>(InvoiceProvider.No),
      Billingo: new SelectItemDataOption<InvoiceProvider>(
        InvoiceProvider.Billingo
      ),
      "szamlazz.hu": new SelectItemDataOption<InvoiceProvider>(
        InvoiceProvider.Szamlazzhu
      ),
    },
    InvoiceProvider.No
  ),
  // ...

export { selectItemList };

Julian Kleine · Accepted Answer · 2021-01-22 15:34:27Z

1

You should declare the constant first then export it

const myAwesomeValue = ...

export { myAwesomeValue }

somewhere else

import { myAwesomeValue } from "..."

answered Jan 22, 2021 at 15:34

Julian Kleine

1,5478 silver badges14 bronze badges

Sign up to request clarification or add additional context in comments.

7 Comments

János Over a year ago

I tried your appoach, but does not work, would you check upper? I get same error.

Julian Kleine Over a year ago

Which error do you get now? The code is correct, there must be a different issue

János Over a year ago

the same: ./src/Types.ts Line 0: Parsing error: Cannot read property 'map' of undefined

Julian Kleine Over a year ago

There should be an issue within your class then. I don't see any map in your code

Julian Kleine Over a year ago

check your constructor function within one of the classes that you are using

|

Collectives™ on Stack Overflow

How to export object in TypeScript from Types.ts file

1 Answer 1

7 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

7 Comments

Your Answer

Sign up or log in

Post as a guest

Related