4. Alternative Approaches to Handling Null and Undefined in JavaScript
   Null and undefined are two special values in JavaScript often used to represent the absence of a value. However, they have distinct meanings:
5. Alternative Methods for Checking Null, Undefined, or Blank Variables in JavaScript
   In JavaScript, variables can hold different types of data, including strings, numbers, objects, and more. Sometimes, a variable might not have a value assigned to it
6. Understanding the Code Examples for Checking Empty/Undefined/Null Strings in JavaScript
   In JavaScript, you often need to determine if a string variable is empty, undefined, or null. Here are the common methods to do this:
7. Mastering Null Removal: Techniques for Filtering Nulls in TypeScript
   Null is a special value in TypeScript (and JavaScript) that indicates the absence of a meaningful value. It's different from undefined