# 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.