Gruntfile.js

module.exports = function (grunt) {
    "use strict";
	grunt.loadNpmTasks("grunt-ts");
    grunt.initConfig({
        ts: {
            // use to override the default options, See: http://gruntjs.com/configuring-tasks#options
            // these are the default options to the typescript compiler for grunt-ts:
            // see `tsc --help` for a list of supported options.
            options: {
                compile: true,                 // perform compilation. [true (default) | false]
                comments: false,               // same as !removeComments. [true | false (default)]
                target: 'es3',                 // target javascript language. [es3 (default) | es5]
                module: 'amd',                 // target javascript module style. [amd (default) | commonjs]
                sourceMap: true,               // generate a source map for every output js file. [true (default) | false]
                sourceRoot: '',                // where to locate TypeScript files. [(default) '' == source ts location]
                mapRoot: '',                   // where to locate .map.js files. [(default) '' == generated js location.]
                declaration: false,            // generate a declaration .d.ts file for every output js file. [true | false (default)]
            },
            // a particular target
            dev: {
                src: ["src/**/*.ts"],          // The source typescript files, http://gruntjs.com/configuring-tasks#files
                //html: ['app/**/**.tpl.html'],  // The source html files, https://github.com/basarat/grunt-ts#html-2-typescript-support
                reference: 'src/reference.ts', // If specified, generate this file that you can use for your reference management
                out: 'src/typeDOM.js',             // If specified, generate an out.js file which is the merged js file
                watch: 'src',                  // If specified, watches this directory for changes, and re-runs the current target
                // use to override the grunt-ts project options above for this target
                options: {
                    module: 'commonjs',
                },
            }
        },
    });

};