Those are examples of higher-order functions that accept functions as arguments, but plenty of them return functions as well. If you’ve ever seen a function call that has two sets of parentheses ...

Our inner function, the one that currently just returns value1, also needs to be modified to return value1 or value2. ... JavaScript tutorial: Add face detection to your web app. Jun 20, 2019 5 mins.

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.

There are some advantages to using JavaScript, though, not in the least its popularity and ability to easily connect to third-party services, but also the simple fact that these functions can run ...