check if a variable is undefined or NULL

check if a variable is undefined or NULL

linked_class

code

linked_uid

SYTk7

views

7

week_num

28

month_num

7

year_num

22

id: 48156
uid: iHC1q
insdate: 2022-07-12 22:23:24
title: check if a variable is undefined or NULL
additional:
category:
linked_class: code
linked_uid: SYTk7
views: 7
week_num: 28
month_num: 7
year_num: 22

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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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🪦 2000 - 16 Oct 2022 - Boots
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<display-inside>

These keywords specify the element's inner display type, which defines the type of formatting context that lays out its contents (assuming it is a non-replaced element). These keywords are used as values of the display property, and can be used for legacy purposes as a single keyword, or as defined in the Level 3 specification alongside a value from the <display-outside> keywords.
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