When you define and execute a function in JavaScript and Node, the variables that exist around it are available to the function. This simple idea, known as a closure , gives us some serious power.

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful! Last week, I casually dropped the term “higher-order ...

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.