An arrow function expression is a compact alternative to a traditional function expression, with some semantic differences and deliberate limitations in usage:| MDN Web Docs
Have you ever tried to click or tap on an element (e.g.: button, link) and you realize that it doesn’t respond until you click on a specific area of it?| ishadeed.com
Events are fired to notify code of "interesting changes" that may affect code execution. These can arise from user interactions such as using a mouse or resizing a window, changes in the state of the underlying environment (e.g. low battery or media events from the operating system), and other causes.| MDN Web Docs