check if a variable is undefined or NULL

check if a variable is undefined or NULL

linked_class

code

linked_uid

SYTk7

views

11

week_num

21

month_num

5

year_num

24

id: 178424
uid: ezGVC
insdate: 2024-05-20 11:47:37
title: check if a variable is undefined or NULL
additional:
category:
linked_class: code
linked_uid: SYTk7
views: 11
week_num: 21
month_num: 5
year_num: 24

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This is my test area for webdev. I keep a collection of code here, mostly for my reference. Also if i find a good link, i usually add it here and then forget about it. more...

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The border-inline-style CSS property defines the style of the logical inline borders of an element, which maps to a physical border style depending on the element's writing mode, directionality, and text orientation. It corresponds to the border-top-style and border-bottom-style, or border-left-style and border-right-style properties depending on the values defined for writing-mode, direction, and text-orientation.
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