rollup.config.js

import typescript from 'rollup-plugin-typescript';
import commonjs from 'rollup-plugin-commonjs';
import nodeResolve from 'rollup-plugin-node-resolve';
import postcss from 'rollup-plugin-postcss'
import json from 'rollup-plugin-json';

export default {
  input: 'src/app.ts',
  output: {
    file: 'www/app.js',
    format: 'iife'
  },
  plugins: [
    json({
      // All JSON files will be parsed by default,
      // but you can also specifically include/exclude files
      // include: 'node_modules/**',
      // exclude: [ 'node_modules/foo/**', 'node_modules/bar/**' ],

      // for tree-shaking, properties will be declared as
      // variables, using either `var` or `const`
      //preferConst: true, // Default: false

      // specify indentation for the generated default export —
      // defaults to '\t'
      //indent: '  ',

      // ignores indent and generates the smallest code
      //compact: true, // Default: false

      // generate a named export for every property of the JSON object
      //namedExports: true // Default: true
    }),
    postcss({
        plugins: []
    }),
    typescript(),
    nodeResolve({
        jsnext: true,
        main: true
      }),
      commonjs({
        // non-CommonJS modules will be ignored, but you can also
        // specifically include/exclude files
        include: 'node_modules/**',  // Default: undefined
        //exclude: [ 'node_modules/foo/**', 'node_modules/bar/**' ],  // Default: undefined
        // these values can also be regular expressions
        // include: /node_modules/
  
        // search for files other than .js files (must already
        // be transpiled by a previous plugin!)
        extensions: [ '.js' ],  // Default: [ '.js' ]
  
        // if true then uses of `global` won't be dealt with by this plugin
        ignoreGlobal: false,  // Default: false
  
        // if false then skip sourceMap generation for CommonJS modules
        sourceMap: false,  // Default: true
  
        // explicitly specify unresolvable named exports
        // (see below for more details)
        namedExports: { './module.js': ['foo', 'bar' ] },  // Default: undefined
  
        // sometimes you have to leave require statements
        // unconverted. Pass an array containing the IDs
        // or a `id => boolean` function. Only use this
        // option if you know what you're doing!
        ignore: [ 'conditional-runtime-dependency' ]
      })
  ]
}