I don&#x27;t know if you&#x27;re setting me up for a joke here, but you&#x27;re putting the ball an inch away from an open goal:<p>Javascript <i>is</i> Typescript. Typescript ⊇ Javascript.<p>Especially if you already use Babel (or any other JS preprocessor, like uglify or concat) and have a build pipeline ready, you can start using Typescript today.<p>Don&#x27;t miss out!<p>PS: It will throw a lot of errors on a conventional codebase, but compile despite them. That&#x27;s the point; install the compiler today, slowly start fixing the errors as you go. It&#x27;s all about gradual improvement and optional typing.