message: Filter examples in webpack via argument
diff: @@ -9,6 +9,7 @@ const path = require("path");
  const glob = require("glob");
  const HtmlWebpackPlugin = require("html-webpack-plugin");
  const CopyWebpackPlugin = require("copy-webpack-plugin");
  +const exampleFilter = process.env["FILTER_EXAMPLE"];
  const prepareOnly = process.env["PREPARE_ONLY"] === "true";
  @@ -120,9 +121,12 @@ function filterExamples(pattern) {
  filterEntries(htmlEntries);
  }
  -// Uncomment and adapt to filter built examples and speed up the build significantly
  +// Usage example:
  +// FILTER_EXAMPLE=shadows yarn start
  //
  -//filterExamples("hello");
  +if (exampleFilter) {
  + filterExamples(exampleFilter);
  +}
  const browserConfig = merge(commonConfig, {
  entry: webpackEntries,
  