check if a variable is undefined or NULL

check if a variable is undefined or NULL

linked_class

code

linked_uid

SYTk7

views

10

week_num

42

month_num

10

year_num

25

id: 286504
uid: XNQq7
insdate: 2025-10-15 13:14:34
title: check if a variable is undefined or NULL
additional:
category:
linked_class: code
linked_uid: SYTk7
views: 10
week_num: 42
month_num: 10
year_num: 25

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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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border-top-left-radius

The border-top-left-radius CSS property rounds the top-left corner of an element by specifying the radius (or the radius of the semi-major and semi-minor axes) of the ellipse defining the curvature of the corner.
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