An anonymous function is one that is defined and used without being given a reference variable. Perhaps the most prominent example of where functional programming shines is in dealing with ...

A function is considered pure if ... behaviors that you might miss with manual or example-based testing. Another benefit of functional programming for testing is that it reduces the number of ...

Functional programming, as the name implies, is about functions. While functions are part of just about every programming paradigm, including JavaScript, a functional programmer has unique ...

In functional programming, everything is a function. Functional programming tries to keep data ... Some languages allow you to mix-and-match concepts, too, like JavaScript for example.

This example might not be considered the purest form of functional programming, but it utilizes key functional characteristics such as “first-order functions.” When we refer to a first-order ...

Functional programming supports higher-order functions and first-order functions. Higher-order functions take other functions as arguments or return functions as results. For example: In functional ...

For example, the function f(x) = x + 1 is a total function, because it can take any number as input and return another number as output. Total functions are desirable in functional programming ...

If our circumference function changed a global variable, for example, it wouldn’t be pure. In functional programming, data is generally treated as immutable. For example, instead of modifying the ...