Why we cann't use var instead of double when I declare constants?

Question

C#

Answer 1

No, you can't use var while defining the constant.
You should use any of other data-type while defining constant.
Otherwise, you can use var too.

Answer 2

const (C# Reference)
https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/const

Answer 3

Yes thank, I understand now .var keyword can chage but other data type will be used in constant declartion

Answer 4

Yes,thank ."const" is keyword?

Answer 5

thank you

Answer 6

While we define constant, it is not required to be double.
You can surely change data-type of constat variable.
I made a simple example where I defined constat with 4 different data-types.
https://code.sololearn.com/c7CUxrGvYkf6/?ref=app

Answer 7

Thank

Answer 8

you want to declare a constant variable so use const keyword instead of var keyword

Answer 9

because the value assigned to constant cannot be changed,