In C programming, a null pointer is a pointer that does not point to any valid object. Checking if an object is null is crucial to avoid accessing invalid memory locations and causing program crashes.
There are several ways to check if an object is null in C:
In JavaScript, objects are a fundamental data type that allows us to store and organize related data. To effectively work with objects, it’s essential to determine their types. JavaScript provides several methods to check the type of an object.
One common method is the typeof operator. It returns a string indicating the type of the variable. For example, if we have an object named “person,” we can check its type using:
