Destructuring is a new ES6 technique for extracting data from JavaScript objects and arrays using a much tighter, terser, and clearer syntax than that provided by ES5. The result is not just the saving [...]
When unit testing functions that use the Date.now() function, you’ll need to lock down the value it returns – otherwise, your unit tests will only ever run successfully on the day (or even [...]
Working with Immutable Maps or Lists is one thing, but how do you work with complex objects, such as deeply nested Maps ...
An Immutable Set provides powerful Set operations such as intersect, union and subtract. This tutorial shows you how to ...
A Set is similar to a List at first glance, but has a number of different properties and functions. In this tutorial, we...