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TypeScript is a language for application-scale JavaScript development. TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. Any browser. Any host. Any OS. Open Source.

(C) http://www.typescriptlang.org/

Btw, I've used it a lot, feel free to ask any questions.

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I wonder if there are any ugly things or traps in programming TypeScript.

The JavaScript gotchas will still getcha, such as variable hoisting. I tend to forget they are still there when working in TypeScript, but that's my fault.

When you comfortable with JavaScript, there is nothing can scare you in TypeScript.

The only thing is - to get a best you need to prepare. If you using some library, I should find (or write, or generate) proper definition file for this library (Interface). But when you get all together - you have a lot of happy hours of coding :)

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