Should you approach TypeScript modules or classes with a focus on unit testing?

When it comes to unit testing in TypeScript, which content architecture strategy is more effective: Creating modules or classes?

Module Example: moduleX.method1(); // Exported method

Class Example: var x = moduleX.method1(); // Public method

Answer №1

Top choice for incorporating unit testing in TypeScript

If a function doesn't rely on local state within a class .... it should simply be a standalone function. No need to instantiate a new instance of a class and call the method when you can just directly call the function.

You can utilize namespaces to organize various functions into a single object : https://basarat.gitbooks.io/typescript/content/docs/project/namespaces.html resulting in something like Utils.foo()

I would suggest creating a javascript module instead of using a namespace: https://basarat.gitbooks.io/typescript/content/docs/project/modules.html

Above all, remember to enjoy yourself 🌹 Stay consistent and thoughtful towards the next developer (include comments / types) so that you can concentrate on the core business logic.

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