S.no let const
1. It can be reassigned, but can’t be redeclared in the same scope. It can be assigned an initial value, but can’t be redeclared in the same scope, and can’t be reassigned.
2. It is beneficial to have for the vast majority of the code. It can significantly enhance your code readability and decrease the chance of a programming error. It is a good practice for both maintainability, readability and avoids using magic literals

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