In this chapter, we learned about operators and the types of operators available, and we learned in detail about operators, especially the ones useful for transforming, filtering, and accumulating emissions by the source producer. We also learned about the necessity of the error handling operators, which we will cover in the next chapter.

This chapter and the next chapter, that is, Chapter 6, More on Operators and Error Handling are highly related; while discussing topics in this chapter, we got a glance about the contents of the next chapter. In the next chapter as well, we will refer to and use the contents learned in this chapter.

While in this chapter we focused on the basics of operators, operator types, and operators specifically useful for filtering, transforming, and accumulating emissions (aka data), in the next chapter, we will cover the operators useful to combine Observable/Flowables and error handling and for conditional purposes.

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