Summary

While building large applications, we see certain problem patterns repeating over and over. These patterns have well-defined solutions that can be reused to build a robust solution. In this chapter, we discussed some of the important patterns and ideas around these patterns. Most modern JavaScript applications use these patterns. It is rare to see a large-scale system built without implementing modules, decorators, factories, or MV* patterns. These are foundational ideas that we discussed in this chapter. We will discuss various testing and debugging techniques in the next chapter.