Promises, handlers, and chains are foundations of modern JavaScript, but they can be tricky. Here are four common traps to ...

Originally derived from es5-ext package. Memoization is best technique to save on memory or CPU cycles when we deal with repeated operations. For detailed insight see ...

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 ...

(“Arity” is a fancy word for argument count of a function ... Now you might not want to go and modify the core JavaScript “Function” prototype to add this (I wouldn’t personally). But don’t worry, you ...