It assumes the reader has experience programming in JavaScript. Functions as a map between two sets. A functional programmer views the nature of a function in a similar way as does a mathematician: It ...

At Microsoft's Ignite 2017 conference today, the company announced a range of new features that will be coming to its Excel application, such as JavaScript Custom Functions and more.

The above example may seem trivial and not very useful, ... JavaScript tutorial: Higher-order functions. Apr 18, 2019 4 mins. how-to. JavaScript memoization: Handy functional programming.