Having trouble with loading the complete file like parameters.js

Lately, I've been facing a recurring issue that goes as follows:

TS2339: Property 'activityTime' does not exist on type 'typeof import...'

When it comes to importing our parameters.js file in the project, we usually do it like this:

import * as params from 'parameters'

However, the parameters.js file is stored locally and may not always contain optional configurations. As a result, code like the following tends to raise errors:

if (params.activityTime) {
// do something
}

We have numerous instances of this scenario scattered throughout the project, and constantly adding @ts-ignore annotations can become quite messy.

I had considered a workaround by doing something like const p: any = params; whenever importing params, but this resulted in unnecessary constants being added to most files, so I decided against pursuing that approach.

Is there a way to cast params as any without modifying our parameters.js file?

Answer №1

To specify the type of a variable in TypeScript, you can declare it like this:

import * as data from './data';

declare const data: {
  age?: number;
};

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