notice: please create a custom view template for the views class view-views.html
check if a variable is undefined or NULL
check if a variable is undefined or NULL
linked_class
code
linked_uid
SYTk7
views
16
week_num
30
month_num
7
year_num
23
id: 118535
uid: rk2pi
insdate: 2023-07-25 23:22:12
title: check if a variable is undefined or NULL
additional:
category:
linked_class: code
linked_uid: SYTk7
views: 16
week_num: 30
month_num: 7
year_num: 23
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The var() CSS function can be used to insert the value of a custom property (sometimes called a "CSS variable") instead of any part of a value of another property.var() css reference