CDNs are an excellent way to speed up the loading of common JavaScript libraries for your website:

Learn how to use the Object.defineProperty API to create lazy values and speed up the time it takes for your application to load. (more…)

Programming JS in a functional style is often more elegant but comes at the cost of performance. In the past, part of that performance problem has been due to native, C++ implementations of the most-often used higher-order operations like Array.prototype....

And we are working hard to make it even worse in 2018...

This D3 V4 tutorial lesson covers the JavaScript Array Map method. (more…)