Many times a programmer would want a variable that will be a constant. The
programmer could have been careless and suddenly changed a very important
variable. Proposed syntax,
constant variable = 10
variable = 20 # Error
Now constant means making a variable value immutable. It means now we can
neither change the variable to point to another value nor the value itself
anymore. For example, if we have a list we cannot change it. If we try to then
"Error". So for lists,
constant variable = ["List"]
variable.append("Some") # Error
variable = ["Another"] # Error
Usually if we have a constant we don't create another reference to it. So do
not support two references. Why not? Many reasons, especially deallocation
problems.
Thanking you,
With Regards
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