Another essential concept in coding is functions, which allow you to store a piece of code that does a single task inside a defined block, and then call that code whenever you need it using a single short command — rather than having to type out the same code multiple times. In this article we'll explore fundamental concepts behind functions such as basic syntax, how to invoke and define them, scope, and parameters.... Anonymous functions and arrow functions So far we have just...pressed "${event.key}".`); }); Arrow functions If you pass an anonymous...