Chapter 10
Standard Higher-Order Functions
Functional programming libraries typically define a common collection of higher-order functions that implement a core set of patterns. Developers can also implement their own higher-order functions to provide users with these standard patterns. Of particular interest are filter, map, and flatMap, which have deep theoretical underpinnings and are supported with a dedicated syntax in some languages. Most code examples in this chapter focus on lists and options for simplicity, but higher-order functions are typically available on many other types.
10.1 Functions with Predicate Arguments
The theme of higher-order functions was motivated in Chapter 9 using a function find, which takes as an argument a ...
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