# TypeScript

Scalable JavaScript development with types, classes and modules.

## Install

npm install -g typescript

## Usage

tsc hello.ts


## Build

1. Install Node if you haven't already (http://nodejs.org/)
2. Install Jake, the tool we use to build our compiler (https://github.com/mde/jake). To do this, run "npm install -g jake".
3. To use jake, run one of the following commands:
- jake local - This builds the compiler. The output is in built/local in the public directory
- jake clean - deletes the build compiler
- jake LKG - This replaces the LKG (last known good) version of the compiler with the built one.
- This is a bootstrapping step to be executed whenever the built compiler reaches a stable state.
- jake tests - This builds the test infrastructure, using the built compiler.
- jake runtests - This runs the tests, using the built compiler and built test infrastructure.
- You can also override the host or specify a test for this command. Use host=<hostName> or tests=<testPath>.
- jake baseline-accept - This replaces the baseline test results with the results obtained from jake runtests.
- jake -T lists the above commands.