Which is better to test: JavaScript or TypeScript?

As I delve into TypeScript, I find myself in a conundrum. In my JavaScript days, I relied on Jest for testing. Now that I'm working with TypeScript, I've come across ts-jest. But here's the thing - do I actually need it? After all, my TS code is compiled into JS which can then be tested using regular Jest. So, what exactly is the purpose of ts-jest and do I even need it?

Answer №1

After a quick glance at the documentation, it appears that the main distinction lies in the fact that ts-jest handles transpilation and test suite execution seamlessly, eliminating the need for manual transpilation prior to testing. Additionally, it performs type checking using TypeScript itself, making it more of an optional feature.

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