I disagree. TypeScript not only attempts to be inline w/ upcoming ES/Harmony standards, but it is not pushed on you in any way. It's Apache licensed and it's no

I disagree. TypeScript not only attempts to be inline w/ upcoming ES/Harmony standards, but it is not pushed on you in any way. It's Apache licensed and it's not like MS is putting a TypeScript VM in their browser. I love TypeScript's typing system, especially type declarations which are based on whether something has something vs on its named type (i.e. duck typing). There are many editors from MS's free VS express to WebStorm plugins to event IDE's written in TypeScript themselves. I find the language work by MS these days (this, f#, etc) to be really community friendly as opposed to locking in. Re "main advantage of JavaScript is not having to supply types", I am a static typing fanatic so I am just going to disagree here and spare everyone the religious (or as Yegge would say, political) war.