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# Can you initilise the value of a constant with the value of a variable

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Whether or not you can do it depends on the programming language. In terms of best practice, it's usually frowned upon to initialize a constant using a variable.
The reason for this is that if it your value is truly a constant (e.g. pi) you'd know the value beforehand and would be able to hardcode it. Initializing a constant using a variable, implies that it's not constant and thus should be declared as a variable and not as a constant.

Posted on Mar 28, 2011

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