You'll be enrolled at LMU Munich â Germany's #1 ranked university, take language courses at JYM, and design your own program of study.
Undefined is defined. Define means to set the limits, explain. So, undefine means not to set limits or not to explain.
undefined is a global variable accessible using the global window object. Line 2 defines undefined and line 3 display the value of undefined as false. On line 4, I use a self-invoking function as method 1 does but now, I define the global undefined variable through the global window object.