systemjs-example/systemjs.build.js

var Builder = require("systemjs-builder");
 
// set it up with your base URL and the path to your config file.
var builder = new Builder("./build", "build/systemjs.config.js");
 
// run the bundler
builder.bundle("./build/app.js", "./dist/app.js", { uglify: false, minify: true, mangle: true });