Problem: Many JavaScript functions don't explicitly check for null or undefined input values. When these values are passed unexpectedly, it can cause errors such as TypeError: Cannot read properties ...

Unlike many other languages, JavaScript does not distinguish between integers and floating-point numbers. 42 and 3.14 are both Number types. BigInt, as its name suggests, only covers integers, and ...

While it explicitly checks for null and returns 0, it doesn't account for cases where either a or b might be undefined, resulting in unexpected behavior or errors. Bug-Hunter-X / ...