When I have the following code structure:
File1.ts
function someFunction(){...}
export default someFunction();
and then
File2.ts
import File1 from "./File1";
File3.ts
import File1 from "./File1";
My question is, will the export default someFunction(); in File1.ts be executed only once and the result cached, or will each import trigger the function execution?
When the export default someFunction(); statement is present in File1.ts, it will only run once.
It is important to note that both modules will share the same version of File1.ts. This behavior is not limited to TypeScript, as it can also be observed in browsers and native ECMAScript modules in Node.js.
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