Var Help

Question

var n1;
n1 = true;
Console.WriteLine(n1);

Whys is this False? Or an error?

Answer 1

You have to assign a value to the variable when you create a variable with the var keyword.
Why? Lettme ask you:
What datatype am I using for x
int x;

pretty easy to guess right? Now...
What datatype am I using for y?
var y;
Can you guess it? Probably not unless you continuing reading on my code but sadly machines, when gets confused, stucks on a line of code and gives errors.

Answer 2

You have to initialize the variable at the time of declaration using "var" keyword. That way, the compiler can infer the variable's data type.