text: const configDevelopment = require('./webpack.config.development');
  const configProduction = require('./webpack.config.production');
  
  module.exports = (env, options) => {
    if (options.mode === 'development') {
      return configDevelopment;
    } else if (options.mode === 'production') {
      return configProduction;
    }
  
    // 모드 설정이 없을 때는 Production 옵션을 설정함
    return configProduction;
  };
  