Orcas in the North Pacific have been seen "massaging" each other - rubbing pieces of kelp between their bodies. Using drones, ...

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 ...

Most other Observable Inputs require two steps:. Create the input. Write a function to filter data based on the value of that input. For example, if you want a dropdown list to display possible ...

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.

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.