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Java own List function for .NullOrEmpty

In Java you have a lot of List Functions. e.g: List.size(), List.isEmpty()... Is it possible to make my own Function like List.nullOrEmpty() and how can i do th

Why is a lifetime needed when implementing From<&[u8]>

I'm trying to have a MyType that supports a From<&[u8]> trait, but I'm running into "lifetime problems": Here's a minimally viable example: struct MyT

Temporal workflow hardware constraints for low latency

I have recently started reading about temporal for use in my company's project. I have built an in-house orchestrator for short lived tasks which is able to sup

Output of \qed symbol in LatEx within a proof environment at the end of an enumerate statement

My aim is to place the \qed symbol in the same line in which the last \item statement within a \begin{enumerate} block with enumitem is placed. In the proofs I'

Why does ajax in php output to a div block with onclic just for a millisecond, refreshes and data disappears?

If I use this code $(document).on('click', '#stavka', function(){ if(confirm('Are you sure you want to delete this data?')){

Google Apps Script web app. Use variable outside of an if forEach statement

I'm new to Javascript, I thought I was going ok but I can't figure out this problem. I'm using Google Apps script to get data from my Google Sheets doc and if a

WidgetKit Dynamic Intent Selection is missing image

When selecting an option from a dynamic collection of objects I am getting an empty blue square. I see the images load properly in the actual list view where a