You can use CopyWebpackPlugin to load css, js file.Try this code
npm install copy-webpack-plugin --save-dev
resolve: { extensions: ['.ts', '.js'], alias: { Content$: path.resolve(__dirname, './Content'), } }, plugins: [ new CopyWebpackPlugin([ { from: 'bootstrap/dist/css/bootstrap.css', to: './Content' } ]) ]
Vignesh
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