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In what cases will HTTP_REFERER be empty
I know it's possible to get an empty HTTP_REFERER. Under what circumstances does this happen? If I get an empty one, does it always mean that the user changed it? Is getting an empty one the same as getting a null one? and under what circumstances do I get that too?
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How to check if an element does NOT have a specific class?
How do I check if there isn't a class. For example, I know how to check to see if it has the class "test", but how do I check to see if it doesn't have the class "test"?
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Adding a collaborator to my free GitHub account?
I created a GitHub account, and I want to give someone write access so he can push just like me, there is a way to add a collaborator with a free plan? If not, what can I do? (besides buying a paid account, which I'll do in the future)
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How to use SCNetworkReachability in Swift
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7 Answers
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?
In Dockerfiles there are two commands that look similar to me: CMD and ENTRYPOINT . But I guess that there is a (subtle?) difference between them - otherwise it would not make any sense to have two commands for the very same thing.
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Most efficient T-SQL way to pad a varchar on the left to a certain length?
As compared to say:
19 Answers
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Add a space (“ ”) after an element using :after
I want to add a blank space after some content, however the content: " "; doesn't seem to work.
5 Answers
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Pass arguments to Constructor in VBA
How can you construct objects passing arguments directly to your own classes?
6 Answers
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What's the point of const pointers?
I'm not talking about pointers to const values, but const pointers themselves.
17 Answers
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Why is it slower to iterate over a small string than a small list?
I was playing around with timeit and noticed that doing a simple list comprehension over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time.
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