👉 Upcasted is a term used in programming to describe the process of converting an object into another type. In other words, it's like converting a string from one data format to another. For example, if you have a variable `myString` which contains a string, and you want to convert it into a different data structure (like an array or a list), you can use the upcast operator `(Object.prototype.toString.call(myString) === '[object String]')` to check if
