Displaying Dynamic Elapsed Time in JavaScript

As a front-end developer, you may come across several use cases where you need to display the elapsed time dynamically. For example, you may need to display the elapsed time in a call interface or you may want to develop a stopwatch feature in your website. Therefore, having a reliable function that you can simply revisit and reuse would be, to simply put it, a life saver. So, I’m here to save your life.