in reply to Re^3: How to turn a "developer code" into a "user code"
in thread How to turn a "developer code" into a "user code"

Great explanation, thank you !
I guess Readonly is not that useful for scalars, then; but better used for arrays and hashes.

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Re^5: How to turn a "developer code" into a "user code"
by tobyink (Canon) on Mar 11, 2012 at 20:08 UTC

    Indeed.

    use constant does "work" for array and hash references, though not in an especially useful way. The reference to the hash/array becomes constant, but the contents of the hash/array can still be manipulated.

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