script-loader essentially allows JavaScript to be loaded in a single instance. This applies globally throughout your project. Let's set this up by going through the following steps:

1. To install script-loader, type the following in the command line:

npm install --save-dev script-loader

2. Use webpack.config.js to configure Webpack, which will export exec from 'script.exec.js';.:

module.exports = {
    module: {
        rules: [{
            test: /.exec.js$/,
            use: ['script-loader']
        }]
    }
}

There is also an inline way of doing this, as follows:

import exec from 'script-loader!./script.js';

That should be all you need to be able to use script-loader with your Webpack application. Next is source-map-loader.