‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!

Unfortunately, this function immediately “forgets” the second value and never does anything with it. Our inner function, the one that currently just returns value1, also needs to be modified ...

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.