If you write JavaScript, you have probably used higher-order functions and not even noticed. If you have ever replaced a for loop with an array method, you’ve used higher-order functions.

Our inner function, the one that currently just returns value1, also needs to be modified to return value1 or value2. ... JavaScript tutorial: Higher-order functions. Apr 18, 2019 4 mins. how-to.

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.