Typescript transpilation causing unexpected addition of 'default' export object

Transitioning from C++ to web development, I find myself facing an issue with my application. There is a .js file that contains the following code snippet which returns an object:

define('moduleA', [...], function(...) {
    ...
    return {
        propertyA: /*boolean value*/,
        ...
    };
});

In my new .ts file, I am attempting to import this Javascript module and utilize it in my Typescript code. The relevant snippet of my Typescript code looks like this:

//@ts-ignore
import moduleA from 'moduleA';

export class ModuleB {
    ...
    public someMethod() {
        if (moduleA.propertyA) {
            ...
        }
    }
    ...
}

Upon transpilation, the Require statement at the top remains intact, but the transpiled code within 'someMethod' changes to:

if (module_a_1.default.propertyA) {
    ...
}

I am puzzled by the appearance of the 'default' sub-object. Currently, an exception is thrown during runtime because 'propertyA' is being referenced on 'undefined'. If the transpiled code looked like this instead:

if (module_a_1.propertyA) {
    ...
}

it would work as expected. I suspect this might be a beginner error in working with Typescript. Can anyone provide insights or suggestions? Your assistance is greatly appreciated!

  • Steve

Answer №1

Is this information useful to you?

import * as moduleA from 'moduleA';

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