Lexical scope is sometimes also referred to as Static Scope.
Lexical scope only depends on the code text and not on the runtime callstack
defining the storage engine for multer, of the type multer.diskStorage
like a config for multer settings
ptr++, then the pointer ptr will be shifted forward by 20 bytes.
since int is 4 bytes
and it is an array of 5 ints
5 * 4 = 20
hence the base type is int
and the size of base is 20 bytes
since we don't actually need any code,
why not keep it empty
: real(r), imag(i)
this is how you initialise static members of a class object
what is memory leak