What assemblers have you worked with, and have you configured anything complex in them?

In working with frontend development, I often used bundlers like Webpack, Parcel, and sometimes Rollup.

Webpack is the most popular, allowing for complex loader and plugin chains. For example, I configured bundle optimization, code splitting, caching, and tree shaking.

An example of complex configuration is dynamic module import for lazy loading:

// In code
import(/* webpackChunkName: "my-chunk" */ './module').then(module => {
  // use the module
});

I also configured support for TypeScript, SCSS, and production optimizations with minification and compression.

Parcel is valued for its simplicity and minimal configuration, but for larger projects, I more often chose Webpack for its flexibility.