Learn how to create a callback function in JavaScript and use it for various purposes, such as asynchronous programming, modularity, flexibility, and custom events.

We all know javascript doesn't support strict typing unlike other languages. So if a function, like the one shown below, expects it's arguments to be of certain types, we must implement type checking ...

Those are examples of higher-order functions that accept functions as arguments, but plenty of them return functions as well. If you’ve ever seen a function call that has two sets of parentheses ...

Parsing the optional arguments on a JavaScript function call can be a complex process when number of arguments increases. Usually the code ends up looking something like this: Basically argShim ...

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 ...