Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of ...

Functional programming, as the name implies, is about functions. While functions are part of just about every programming paradigm, including JavaScript, a functional programmer has unique ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Soroosh Khodami discusses why we aren't ready ...

Developers use JavaScript promises to model asynchronous operations in web and server-side programs. Here's a quick look at five ways to use promises in your code. Promises are a central mechanism for ...

This tutorial shows how to call an ASP.NET Core web API with JavaScript, using the [Fetch API](https://developer.mozilla.org/docs/Web/API/Fetch_API). ## Prerequisites ...

‘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 function” ...

At the Build 2018 developer conference that's taking place these days in Seattle, USA, Microsoft announced support for custom JavaScript functions in Excel. What this means is that Excel users will be ...

Microsoft is launching a couple of features to Excel today that make the ubiquitous spreadsheet software a bit more powerful. Among the new features is support for Azure Machine Learning and custom ...

jsFiddle lets developers play with the three core elements of Web development. Check out this powerful application for rapid prototyping and testing. Every developer has been in the situation where ...

The low cost, simplicity of design and intrinsic efficiency of flyback transformers have made them a popular solution for power supply designs of below 100W to 150W. Other advantages of the flyback ...