Decorators are helpful for anything you want to transparently wrap with extra functionality. These include memoization, enforcing access control and authentication, instrumentation and timing functions, logging, rate-limiting, and the list goes on.
Because twenty-five other explanations weren't enough, here I will explain JavaScript promises. This tutorial is intended for people who already understand JavaScript.
“Make the Leap from JavaScript to PureScript” takes some of the most popular functional programming (FP) abstractions in JavaScript and demonstrates how to implement them in PureScript. I borrowed…
It’s quite common to divide our program into chunks using functions which we can call later to perform some useful action. Sometimes, a function can become expensive to call multiple times (say, a…