import types dynamically in TypeScript

One of the files I have is called MyFactory.ts. Here is its content:

export type CommandFactory = () => string[] | undefined;
export enum FactoryIds {commandFactory : 'commandFactory'}

Now, my goal is to dynamically import this file into another file (let's call it main.ts) and utilize the CommandFactory type. Here is what main.ts looks like:

const Factory = await import('./MyFactory');
const commandFactories : Factory.CommandFactory[] = []; //I encountered an error saying 'Property 'CommandFactory' does not exist on type 'typeof import('MyFactory')'

Although I can access FactoryIds using Factory.FactoryIds, I am unable to access CommandFactory through Factory.CommandFactory. I am curious to find out how I can dynamically import the CommandFactory type in my main.ts file.

Answer №1

It is not necessary to dynamically import a type because types are static and removed after compilation. If you need to import types from a module that you want to import dynamically, you can do so by importing the types separately:

import type { User } from './UserModule';

const Module = await import('./UserModule');

The import type statements get eliminated during compilation, ensuring that your module will still be imported dynamically at runtime.

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