Function Hoisting: The function functionName is hoisted, meaning it is available throughout the entire scope. Calling functionName() before its declaration works fine, and the output is Functions are ...

In this friendly introduction to functional programming with JavaScript, you'll learn what Functional Programming (FP) is and how it differs from other programming styles (such as OO and imperative).

In functional programming, there are two varieties of functions: first-order functions and pure functions. First-order functions. A first-order function takes standard data types (string, number, ...

Learn how JavaScript’s built-in functions like map() and filter(), as well as compose() and chain(), support a more elegant handling of JavaScript arrays.

Reassign JavaScript Function Parameters In Reverse Order, Or Lose Your Params 18 March, 2014. It was a Tuesday. Every now and then I need to have a method support 2 or 3 arguments, providing a default ...