Why is it that retrieving the same class data from two separate TypeScript files yields varying results in TypeScript? What steps can be taken to resolve this issue

I have created 3 TypeScript files named dataService.ts, init.ts, and interest.ts. The dataService.ts file is a common file used to store and retrieve data from the other 2 files.

Within the dataService.ts file:

export default class DataService {
    private static temp1 = null;
    private static temp2 = null;

    public static setData(property: string, value: any) {
        DataService[property] = value;
    }

    public static getData(property: string) {
        return DataService[property];
    }
}

In the init.ts file:

import DataService from './common/dataService';

export default async function init() {
    DataService.setData('temp1', 'init');
    console.log('Data service from init ', DataService.getData('temp1'));
    console.log('Data service from init ', DataService.getData('temp2'));
}

init();

In the interest.ts file:

import DataService from './common/dataService';
export default async function interest() {
    DataService.setData('temp2', 'interest');
    console.log('Data service from interest ', DataService.getData('temp1'));
    console.log('Data service from interest ', DataService.getData('temp2'));
}

interest();

When running the first init function, the output is:

Data service from init init
Data service from init null

However, running interest.ts after init.ts results in:

Data service from interest null
Data service from interest interest

Ideally, the output from interest.ts should be:

Data service from interest init
Data service from interest interest

as the value of temp1 was set by init.ts. How can I achieve this type of global content sharing in TypeScript?

Answer №1

While executing this code in the TypeScript playground

click here

You will observe that it behaves as anticipated. Therefore, my assumption is that you unintentionally ran this code in two separate executions.

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