Understanding the Distinction Between null and undefined in JavaScript
In JavaScript, both null and undefined are primitive types with different meanings. It is crucial to understand the distinctions between them. undefined: When a variable is declared but not assigned any value, it is considered undefined. For example: let age; // age is undefined It is important to note that attempting to access a variable that has not been declared will result in a ReferenceError: <variable> is not defined error, which is different from undefined....