[AdrianB1]

There are many ways to look at this. Maybe the standard lib of such functions should be implemented as native functions in the language (1). Or as a standard external function library (2). Or people should copy-paste the functions they need and keep in their organization's function library (3). I am sure there are a few more options.

I moved to option 3: in all my apps I include a function library that I build over the years, so I don't start from scratch every time. I deeply hate ("hate speech" example here) dependencies to libraries from all over the Internet due to security reasons, but I copy-paste code when needed to my library after I read, understand and check the code that I copy. The biggest advantage is that some of this code is better than what I could invent from scratch in a busy day and I save the time of doing it right. The disadvantage is there is no way to reward these authors that contribute to humankind.

PS. My function library has functions mostly written by me, over 80%, but it includes code written by others. In my case, every time I need a function I check my existing library first, then analyze whether to write or copy.

[richardwhiuk]

I assume you correctly obey the licensing when you copy and paste it in....

[AdrianB1]

Yes. It is not worth not doing it.