Also you can't use the let keyword unless you've explicitly declared that you're using version 1.7. ... which strikes me as a very annoying design choice.

Isn't that exactly the same design choice as the feature pragma in 5.10?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re^4: [OT] Perl / Computer Science Science Fair Projects by BrowserUk
in thread [OT] Perl / Computer Science Science Fair Projects by amarquis

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