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7:59 pm, May 26, 2025

check if a variable is undefined or NULL

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id: 256140
uid: 57aGR
insdate: 2025-05-26 19:59:44
title: check if a variable is undefined or NULL
additional:
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linked_class: code
linked_uid: SYTk7
views: 11
week_num: 22
month_num: 5
year_num: 25

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