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Manually adding a Userscript to Google Chrome

...ey extension. This will allow you to easily install Greasemonkey scripts, and to easily manage them. Also it makes it easier to install userscripts directly from sites like OpenUserJS, MonkeyGuts, etc. Finally, it unlocks most all of the GM functionality that you don't get by installing a GM scri...
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What does the function then() mean in JavaScript?

...guration. Then based on that, we fetch information about the current user, and then finally get the list of items for the current user. Each xhrGET call takes a callback function that is executed when the server responds. Now of course the more levels of nesting we have, the harder the code is to r...
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Using a dispatch_once singleton model in Swift

...tl;dr: Use the class constant approach if you are using Swift 1.2 or above and the nested struct approach if you need to support earlier versions. From my experience with Swift there are three approaches to implement the Singleton pattern that support lazy initialization and thread safety. Class c...
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How to do a GitHub pull request

How do I create and/or send a pull request to another repository hosted on GitHub? 8 Answers ...
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What do pty and tty mean?

I noticed there are many mentions of pty and tty in some opensource projects, could someone can tell me what do they mean and what is the difference between them? Thanks! ...
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Learning Regular Expressions [closed]

I don't really understand regular expressions. Can you explain them to me in an easy-to-follow manner? If there are any online tools or books, could you also link to them? ...
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How to unit test abstract classes: extend with stubs?

I was wondering how to unit test abstract classes, and classes that extend abstract classes. 14 Answers ...
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When to use a linked list over an array/array list?

I use a lot of lists and arrays but I have yet to come across a scenario in which the array list couldn't be used just as easily as, if not easier than, the linked list. I was hoping someone could give me some examples of when the linked list is notably better. ...
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Check number of arguments passed to a Bash script

... Just like any other simple command, [ ... ] or test requires spaces between its arguments. if [ "$#" -ne 1 ]; then echo "Illegal number of parameters" fi Or if test "$#" -ne 1; then echo "Illegal number of parameters" fi Suggestions When in Bash,...
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Installing PDO driver on MySQL Linux server

...long ago, to change my code to use PDO in order to parameterize my queries and safely save HTML in the database. 6 Answers ...