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Can I set variables to undefined or pass undefined as an argument?

I’m a bit confused about JavaScript’s undefined and null values. 10 Answers 10...
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What are the differences between git branch, fork, fetch, merge, rebase and clone?

...want to understand the difference between a branch, a fork and a clone in Git? 5 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 ...
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UIButton: how to center an image and a text using imageEdgeInsets and titleEdgeInsets?

... For what it's worth, here's a general solution to positioning the image centered above the text without using any magic numbers. Note that the following code is outdated and you should probably use one of the updated versions below: /...
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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 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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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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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...
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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 ...