[VSCode](https://code.visualstudio.com/) is highly recommended as developing IDE for typescript because we can get the benefit of [intelligent code completion, parameter info, and member lists](https://code.visualstudio.com/docs/languages/javascript).
The last Javascript version is: [v0.4.0](https://github.com/wechaty/wechaty/releases/tag/v0.4.0)(2016/10/9) , or install v0.4 by `npm install wechaty`.
### Benifits from Typescript
-[Why we decided to move from plain JavaScript to TypeScript for Babylon.js](https://www.eternalcoding.com/?p=103)
-[Migrating from JavaScript](https://www.typescriptlang.org/docs/handbook/migrating-from-javascript.html)
## Voice of the Developer
> @JasLin: it may be the best wechat SDK I have seen in Github! [link](https://github.com/wechaty/wechaty/issues/8#issuecomment-228971491)
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@@ -271,6 +253,34 @@ Please submit your issue if you have any, and a fork & pull is very welcome for
</a>
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# About TypeScript
[Typescript](http://www.typescriptlang.org/) is JavaScript that scales. It comes from Microsoft, and is the popularest language in [Google Angular](https://angular.io).
## Benifits from Typescript
Wechaty is fully typed by TypeScript since v0.5, 12th Oct 2016. And got benefits as the following:
1. Better async coding style: `async`/`await` (now we use `co` module)
1. Strong type definition/checking for data structure
1. Auto completion/Static syntax check with [VSCode IDE](https://code.visualstudio.com)
1. Static variable that can initializing inside class
1. Public/private setting for methods/member variables
1. other benefits...
The lastest javascript version is: [v0.4.0](https://github.com/wechaty/wechaty/releases/tag/v0.4.0)(2016/10/9)
## Reference
1.[The Future of Declaration Files](https://blogs.msdn.microsoft.com/typescript/2016/06/15/the-future-of-declaration-files/)
1.[What's new in TypeScript](https://github.com/Microsoft/TypeScript/wiki/What's-new-in-TypeScript)
1.[Why we decided to move from plain JavaScript to TypeScript for Babylon.js](https://www.eternalcoding.com/?p=103)
1.[Migrating from JavaScript](https://www.typescriptlang.org/docs/handbook/migrating-from-javascript.html)
* Work Log: https://github.com/wechaty/wechaty/issues/40
[VSCode](https://code.visualstudio.com/) is highly recommended as developing IDE for Wechaty with TypeScript because we can get the benefit of [intelligent code completion, parameter info, and member lists](https://code.visualstudio.com/docs/languages/javascript).
# Trouble Shooting
If wechaty run unexpected, then unit test maybe help to find some useful message.
