May 28, 2017 · The empty() is a nice fast way to see if the variable holds any useful info... that is for strings empty() returns true for a string of "" as well as a null string.

"the browser interpretation of an empty element can vary" It doesn't, at all. Every browser considers an element that contains whitespace to not be empty for the purposes of the :empty …

Aug 5, 2009 · Is there a way to empty an array and if so possibly with .remove()? For instance, A = [1,2,3,4]; How can I empty that?

Nov 7, 2013 · How do I check if a pandas DataFrame is empty? I'd like to print some message in the terminal if the DataFrame is empty.

I want to check for data, but ignore it if it's null or empty. Currently the query is as follows...

I would like to know how to use NULL and an empty string at the same time in a WHERE clause in SQL Server. I need to find records that have either null values or an empty string. Thanks.

Could you help me to improve my coding style?:) In some tasks I need to check - is variable empty or contains something. To solve this task, I usually do the following. Check - is this …

Apr 23, 2025 · You might use string.Empty as the default postfix for a person's name (most people don't have PhD for example) - and null for a configuration option that wasn't specified …

Feb 11, 2012 · Usually we delete the recycle bin contents by right-clicking it with the mouse and selecting "Empty Recycle Bin". But I have a requirement where I need to delete the recycle bin …

Mar 29, 2012 · Note that a string with spaces is actually an empty string but has a non-zero size. Let’s see two different methods of checking if string is empty or not: Method #1 : Using Len () …