I'm guessing that the reference is causing this?

What is this guessing? 

$ perl -le"print \undef"
SCALAR(0x3d5790)

$ perl -le"print defined \undef"
1

$ perl -le"print \1"
SCALAR(0x3d8284)

$ perl -le"print defined \1"
1

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In reply to Re^7: How to check if an array element reference exists or not by Anonymous Monk
in thread How to check if an array element reference exists or not by corpx

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