What is constant and Readonly

 What is Difference Between constant and readonly.

Ans:

const

• They can not be declared as static (they are implicitly static)
• The value of constant is evaluated at compile time
• constants are initialized at declaration only

readonly

• They can be either instance-level or static
• The value is evaluated at run time
• readonly can be initialized in declaration or by code in the constructor

imp

const: Can't be changed anywhere.

readonly: This value can only be changed in the constructor. Can't be changed in normal functions