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Can every recursion be converted into iteration?
A reddit thread brought up an apparently interesting question:
17 Answers
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How to center a “position: absolute” element
I'm having a problem centering an element that has the attribute position set to absolute .
Does anyone know why the images are not centered?
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Can a foreign key be NULL and/or duplicate?
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Short answer: Yes, it can be NULL or duplicate.
I want to explain why a foreign key might need to be null or might need to be unique or not unique. First remember a Foreign key simply requires that the value in that field must exist first in a...
Is it better to use std::memcpy() or std::copy() in terms to performance?
Is it better to use memcpy as shown below or is it better to use std::copy() in terms to performance? Why?
8 Answers
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How to programmatically empty browser cache?
... and I'd like to remove those when you press "log out". This would happen either via server or JavaScript. Of course, using the software on foreign/public computer is still discouraged as there are more dangers like key loggers that you just can't defeat on software level.
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How to “perfectly” override a dict?
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You can write an object that behaves like a dict quite easily with ABCs (Abstract Base Classes) from the collections.abc module. It even tells you if you missed a method, so below is the minimal version that shuts the ABC up.
from co...
Post data to JsonP
Is it possible to post data to JsonP? Or does all data have to be passed in the querystring as a GET request?
7 Answers
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What is the performance cost of having a virtual method in a C++ class?
Having at least one virtual method in a C++ class (or any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer.
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Creating a blurring overlay view
...sic app of the new iOS, we can see an album cover behind a view that blurs it.
25 Answers
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Java HTTPS client certificate authentication
I'm fairly new to HTTPS/SSL/TLS and I'm a bit confused over what exactly the clients are supposed to present when authenticating with certificates.
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