One way of doing this in JavaScript is called memoization, which is a functional programming technique used to deal with costly pure functions.

JavaScript is a flexible language, allowing for all sorts of styles and programming paradigms. Although this breadth sometimes comes at a cost to readability or consistency across a code base, it ...

Immutable.js provides JavaScript with a set of persistent data structures allowing for a functional programming style while using natural syntax familiar to traditional JavaScript developers.

Figure 1. Functional JavaScript is available as an ebook (without DRM) from O'Reilly or as a paperback. Anyone who has followed my missives on programming have noted the varied exposure to ...

Purely functional programming is a brilliant idea with a misleading name. When people talk about “purely functional programming”, they mean Haskell or something like Haskell. But that’s not ...

Microsoft: Learn JavaScript programming language for free with our new course Programmers keen on building browser applications can take advantage of Microsoft's free JavaScript video course.

Facebook went with a novel programming methodology, called functional programming, to update the News Feed for its Apple iOS client, which helped considerably in tuning and debugging the app ...