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The Definitive C Book Guide and List
This question attempts to collect a community-maintained list of quality books on the c programming language, targeted at various skill levels.
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What is a plain English explanation of “Big O” notation?
I'd prefer as little formal definition as possible and simple mathematics.
41 Answers
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Why is a pure virtual function initialized by 0?
...dn't think he could get another keyword, such as "pure" past the C++ community at the time the feature was being implemented. This is described in his book, The Design & Evolution of C++, section 13.2.3:
The curious =0 syntax was chosen ...
because at the time I saw no chance of
getting ...
In Git, how can I write the current commit hash to a file in the same commit
I'm trying to do a fancy stuff here with Git hooks, but I don't really know how to do it (or if it's possible).
7 Answers
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Why does jQuery or a DOM method such as getElementById not find the element?
... you were trying to find wasn’t in the DOM when your script ran.
The position of your DOM-reliant script can have a profound effect upon its behavior. Browsers parse HTML documents from top to bottom. Elements are added to the DOM and scripts are (generally) executed as they're encountered. This ...
Why do you use typedef when declaring an enum in C++?
I haven't written any C++ in years and now I'm trying to get back into it. I then ran across this and thought about giving up:
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How do I fix PyDev “Undefined variable from import” errors?
...a settings object. I import that in module b and assign an attribute with:
13 Answers
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FileSystemWatcher vs polling to watch for file changes
...e system watcher fail in production and test environments. I now consider it a convenience, but I do not consider it reliable. My pattern has been to watch for changes with the files system watcher, but poll occasionally to catch missing file changes.
Edit: If you have a UI, you can also give y...
How do I run a node.js app as a background service?
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Copying my own answer from How do I run a Node.js application as its own process?
2015 answer: nearly every Linux distro comes with systemd, which means forever, monit, PM2, etc are no longer necessary - your OS already handles these tasks.
Make a myapp.service file (replacing 'myapp' w...
Is if(items != null) superfluous before foreach(T item in items)?
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You still need to check if (items != null) otherwise you will get NullReferenceException. However you can do something like this:
List<string> items = null;
foreach (var item in items ?? new List<string>())
{
item.Dump();
}
but you...