Yup- Typescript is mostly used in large-scale enterprise software development where rigorous unit tests are not in place. I still suspect that a large part of

Yup- Typescript is mostly used in large-scale enterprise software development where rigorous unit tests are not in place. I still suspect that a large part of Typescript adoption comes from developers who are used to working in an IDE (Visual Studio, Eclipse, etc), and are uncomfortable with javascript's natural "textfile->compiler->test" workflow. Its also worth noting that support for typescript (that isn't Microsoft marketing) tends to come from outwith established tech environments. Using Typescript outwith MS environments can be challenging.