Every array comes with the method forEach() in JavaScript. Whaaaaat? Did we read that right? We can pass a function as an argument? You bet your boots we can! That function, in turn, accepts up to ...

If you decide to spill the results, you can then use the spilled range operator (#) to perform a calculation on the spilled ...

Data in JavaScript is often represented by an iterable (such as an array, set or generator), and so iterable manipulation is a common task when analyzing or visualizing data. For example, you might ...