in reply to How do I tell if my code is using JSON::PP or JSON::XS?

You can:

my $json = JSON->new; print "Using JSON::XS\n" if $json->is_xs();

See the JSON choosing backend documentation and (further down in the documentation) the additional methods section for is_xx and related methods.

Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond

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Re^2: How do I tell if my code is using JSON::PP or JSON::XS?
by Cody Fendant (Friar) on Nov 17, 2020 at 19:57 UTC
    Thanks! I really should RTFM shouldn’t I?

      Indeed. The thought had crossed my mind :-D.

      Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond