Javascript Undefined and null

Java code varabcnull; alert (typeofabc); // The returned object here. null is actually a pointer to an empty object. It is no surprise that alert (nullundefined) is returned here ); // return true here, undefined is derived from null, so this... synt

Java code
Var abc = null;
Alert (typeof abc); // The object is returned here. null is actually a pointer to a null object. It is no surprise that all objects are returned here.
Alert (null = undefined); // true is returned here. undefined is derived from null, so true is returned for Equality comparison.
Alert (null = undefined); // here, false is returned. In fact, these two values have different functions. When we define an object, we often initialize the object to null, but undefined, we generally do not show a reputation.

Author: "LoveBeyond"