1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
[](https://travis-ci.org/Microsoft/TypeScript)
[](http://issuestats.com/github/microsoft/typescript)
[](http://issuestats.com/github/microsoft/typescript)
# TypeScript
[TypeScript](http://www.typescriptlang.org/) is a language for application-scale JavaScript. TypeScript adds optional types, classes, and modules to JavaScript. TypeScript supports tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript. Try it out at the [playground](http://www.typescriptlang.org/Playground), and stay up to date via [our blog](http://blogs.msdn.com/typescript) and [twitter account](https://twitter.com/typescriptlang).
## Contribute
There are many ways to [contribute](https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md) to TypeScript.
* [Submit bugs](https://github.com/Microsoft/TypeScript/issues) and help us verify fixes as they are checked in.
* Review the [source code changes](https://github.com/Microsoft/TypeScript/pulls).
* Engage with other TypeScript users and developers on [StackOverflow](http://stackoverflow.com/questions/tagged/typescript).
* Join the [#typescript](http://twitter.com/#!/search/realtime/%23typescript) discussion on Twitter.
* [Contribute bug fixes](https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md).
* Read the language specification ([docx](http://go.microsoft.com/fwlink/?LinkId=267121), [pdf](http://go.microsoft.com/fwlink/?LinkId=267238)).
## Documentation
* [Quick tutorial](http://www.typescriptlang.org/Tutorial)
* [Programming handbook](http://www.typescriptlang.org/Handbook)
* [Language specification](https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md)
* [Homepage](http://www.typescriptlang.org/)
## Building
In order to build the TypeScript compiler, ensure that you have [Git](http://git-scm.com/downloads) and [Node.js](http://nodejs.org/) installed.
Clone a copy of the repo:
```
git clone https://github.com/Microsoft/TypeScript.git
```
Change to the TypeScript directory:
```
cd TypeScript
```
Install Jake tools and dev dependencies:
```
npm install -g jake
npm install
```
Use one of the following to build and test:
```
jake local # Build the compiler into built/local
jake clean # Delete the built compiler
jake LKG # Replace the last known good with the built one.
# Bootstrapping step to be executed when the built compiler reaches a stable state.
jake tests # Build the test infrastructure using the built compiler.
jake runtests # Run tests using the built compiler and test infrastructure.
# You can override the host or specify a test for this command.
# Use host=<hostName> or tests=<testPath>.
jake runtests-browser # Runs the tests using the built run.js file. Syntax is jake runtests. Optional
parameters 'host=', 'tests=[regex], reporter=[list|spec|json|<more>]'.
jake baseline-accept # This replaces the baseline test results with the results obtained from jake runtests.
jake -T # List the above commands.
```
## Usage
```shell
node built/local/tsc.js hello.ts
```
## Roadmap
For details on our planned features and future direction please refer to our [roadmap](https://github.com/Microsoft/TypeScript/wiki/Roadmap).
|
