How to ignore a folder when using watch with webpack?

@darrion.kuhn 

To ignore a folder when using watch with webpack, you can use the ignored option in the watchOptions configuration.

Here's an example of how to ignore a folder named "node_modules":

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// webpack.config.js

module.exports = {
  watch: true,
  watchOptions: {
    ignored: /node_modules/
  },
  // other webpack configurations...
};

In this example, we use a regular expression to match the folder name "node_modules" and ignore it when webpack is watching for changes. You can customize the regular expression to match any folder or file you want to ignore.