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

23

month_num

6

year_num

24

id: 181888
uid: 0otCS
insdate: 2024-06-04 03:25:39
title: check if a variable is undefined or NULL
additional:
category:
linked_class: code
linked_uid: SYTk7
views: 7
week_num: 23
month_num: 6
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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therock Somewhere along this crazy road I learned (often times the hard way) the most important things I can do is be authentic, trust my gut, be the hardest worker in the room, celebrate the mistakes, be a grateful man and always remember that it's nice to be important, but it's more important to be nice.
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Random CSS Property

unicode-range

The unicode-range CSS descriptor sets the specific range of characters to be used from a font defined by @font-face and made available for use on the current page. If the page doesn't use any character in this range, the font is not downloaded; if it uses at least one, the whole font is downloaded.
unicode-range (@font-face) css reference