An Operator is a function that applies on an Observable to produce a new Observable. In the process, the original Observable is not mutated and can be considered as a pure function. We have already covered lot of Operators in our sample programs that we have written. In Chapter 10, Creating Custom Operators in Rxcpp, we will learn how to create custom Operators which work on Observables. The fact that an Operator does not mutate an (input) Observable is the reason why declarative scheduling works in the Rx programming model. Rx Operators can be categorized as follows:
- Creation Operators
- Transformation Operators
- Filtering Operators
- Combining Operators
- Error-handling Operators
- Utility Operators
- Boolean Operators
- Mathematical Operators
There are some more Operators available that do not fall into any of these categories. We will provde a list of key Operators from preceding categories , as a table for quick reference. As a developer one can pick Operators depending on the context, by...