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Testing Library is an excellent library from Kent Dodds, it's also one of the testing tools recommended by the React team

https://reactjs.org/docs/testing.html

I don't think it would be a "whatever" choice personally. I didn't take the survey this year, but other years you had to explicitly specify what your level of interest/satisfaction with a particular technology was.

Personally I'm not surprised that testing-library came out so high in satisfaction; its an incredibly useful layer over Jest and and incredibly popular in React-land.

I mean, if you don't know it's a library, you may think this is the 'other' choice.

> “Someones data is dirty dirty dirty”

Par for the JavaScript community course.