An illustration of the Webpack 1.1.8 entry emission issue when in watch mode (https://github.com/webpack/webpack/issues/256)

A.js

// This is our entry point.
// We use `require.ensure` to tell webpack to generate a chunk that bundles `B.js`
require.ensure(['./B'], function (require) {
  require('./B');
});

B.js

// After starting watch.js, make a change to this file to see the issue
console.log('B?');

watch.js

// Start this file with `node watch.js`
webpack = require('webpack');
path = require('path');

webpack({
  entry: {
    A: ['./A']
  },
  output: {
    path: path.join(__dirname, 'built'),
    filename: '[name]-built.js',
    chunkFilename: '[chunkhash].js'
  }
}).watch(100, function (err, stats) {
  if (err) console.log(err);
  console.log(stats.toString({colors: true, chunks: false}));
});