Do you test your JavaScript?

<introEmbed body={<> The need to build rich web user interfaces is resulting in more and more JavaScript in our applications. Because JavaScript does not have the safeguards of strong typing and compile-time checking, it is just as important to unit test your JavaScript as your server-side code. </>} />

You can write unit tests for JavaScript using:

• Jest (Recommended)
• Karma
• Jasmine

Jest is recommended since it runs faster than Karma (due to the fact that Karma runs tests in a browser while Jest runs tests in Node).