TypeScript: Industrial-Strength JavaScript

Historians who reflect on JavaScript's emergence as a dominant programming language in the 21st century may find themselves quoting Donald Rumsfeld: "You go to war with the army you have, not the army you might wish to have."
For growing numbers of programmers, JavaScript is the army we have. As we send it into the field to tackle ever more ambitious engagements both client and server side, we find ourselves battling the language itself.[ JavaScript rules the Web -- but how do you harness it