c# const vs readonly

c# const vs readonly

readonly keyword is used to define a variable 

which can be assigned once after the declaration 

either during declaration or in the constructor. 


const keyword is used to define a constant to be used in the program.

A const is a compile-time constant whereas readonly allows a value to be calculated at run-time and set in the constructor or field initializer. So, a 'const' is always constant but 'readonly' is read-only once it is assigned.

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