JavaScript arrays are an incredibly flexible way to model collections using techniques from functional programming. This article introduces you to using tools like forEach(), map(), and reduce ...

Producing no side effects is another important principle of functional programming. The JavaScript method, Array.map(f) is a pure function in that it takes a function as a parameter. That last point ...

You can use the _NUMERIC_ variable in your program if, for example, you need to convert currency. In this application, you do not need to know the variable names. You need only to convert all values ...