webpack_partial.config.js

devtool: "eval-source-map",
module: {
    rules: [
        { 
            enforce: "pre", 
            test: /\.js$/, 
            exclude: /node_modules/, 
            loader: "source-map-loader" 
        },
        {
            test: /\.(t|j)sx?$/,
            exclude: /node_modules/,
            use: { 
                loader: 'ts-loader'
            }
        },  
    ],
},