This chapter has followed the demonstration of various code-splitting practices, including code chunks and dynamic imports. You will now have a sound base of knowledge to carry out code splitting and use modules. These are fundamental features of Webpack, so a solid grounding is necessary.

Code splitting and modules are a matter of structural necessity for Webpack applications. Code chunks and dynamic imports will be more important on specialist tasks that require heavy-duty programming.

You were taken through prefetching modules and bundle analysis—important procedures that are needed to clearly understand the following chapter, where we will look at the world of configuration, understanding its limitations and capabilities as well as where options play their part.

These concepts are important as configuration is central to Webpack development and a matter of day-to-day programming. Options become more important when it comes to production and you need your project to operate correctly. 

To test your skills, try the following quiz and see whether your understanding of the topics covered in this chapter is up to scratch.