Svelte crash course by The Net Ninja

In case of using not yarn package manager, change params in rollup.config.js at the line 20.

  return {
    writeBundle() {
      if (server) return;
      server = require('child_process').spawn(
        'yarn',
        ['start', '--', '--dev'],
        {
          stdio: ['ignore', 'inherit', 'inherit'],
          shell: true,
        }
      );