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Parsing JSON with Unix tools

...om the command line, and will be a lot easier and more reliable than doing it with Awk, such as jq: curl -s 'https://api.github.com/users/lambda' | jq -r '.name' You can also do this with tools that are likely already installed on your system, like Python using the json module, and so avoid any e...
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What does threadsafe mean?

...tbox from a thread (other than the UI thread) and an exception was thrown. It said something about the "code not being thread safe" and so I ended up writing a delegate (sample from MSDN helped) and calling it instead. ...
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Why use Ruby instead of Smalltalk? [closed]

Ruby is becoming popular , largely from the influence Ruby on Rails, but it feels like it is currently struggling through its adolescence. There are a lot of similarities between Ruby and Smalltalk -- maglev is a testament to that. Despite having a more unusual syntax, Smalltalk has all (if not m...
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Why do enum permissions often have 0, 1, 2, 4 values?

...two and I can do this: var permissions = Permissions.Read | Permissions.Write; And perhaps later... if( (permissions & Permissions.Write) == Permissions.Write ) { // we have write access } It is a bit field, where each set bit corresponds to some permission (or whatever the enumerated ...
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When is it acceptable to call GC.Collect?

...would be an appropriate time to collect in terms of the small performance hit. A good example of this is if you've just closed a large form. You know that all the UI controls can now be garbage collected, and a very short pause as the form is closed probably won't be noticeable to the user. UPDATE...
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Is there a version of JavaScript's String.indexOf() that allows for regular expressions?

...lse if(startpos < 0) { startpos = 0; } var stringToWorkWith = this.substring(0, startpos + 1); var lastIndexOf = -1; var nextStop = 0; while((result = regex.exec(stringToWorkWith)) != null) { lastIndexOf = result.index; regex.lastIndex = ++nextStop; ...
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Is Integer Immutable

...ted object, just as your Integer is. So the value of a did not mutate, but it was replaced with a completely new object, i.e. new Integer(6). share | improve this answer | fo...
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Does Firefox support position: relative on table elements?

When I try to use position: relative / position: absolute on a <th> or <td> in Firefox it doesn't seem to work. ...
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Seedable JavaScript random number generator

... believe). However, I don't think there's any way to set you own seed for it. 9 Answers ...
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“unmappable character for encoding” warning in Java

I'm currently working on a Java project that is emitting the following warning when I compile: 12 Answers ...