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Why use Ruby instead of Smalltalk? [closed]

... Smalltalk did substantially address the insularity. The class library of most of the main smalltalk implementations (VisualWorks, VisualAge etc.) was large and had reputation for a fairly steep learning curve. Most key functionality in Smalltalk is hidden away somewhere in the class library, even ...
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If unit testing is so great, why aren't more companies doing it? [closed]

... then -- I have no idea what our code coverage was like and I was writing most of the unit tests. Since then I've run into some companies that do lots of testing, but it's chair testing: relies on a person being there, has low repeatibility and low chance of catching bugs. The other attitude is: it ...
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple

Every time I mention slow performance of C++ standard library iostreams, I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer...
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How to get the second column from command output?

...rk to get a specific column out of the command output "docker images": REPOSITORY TAG IMAGE ID CREATED SIZE ubuntu 16.04 12543ced0f6f 10 months ago 122 MB ubuntu ...
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Find UNC path of a network drive?

...--------------------- OK Q: \\server1\foo Microsoft Windows Network OK X: \\server2\bar Microsoft Windows Network The command completed successfully. Note that this shows the list of mapped and connected network file shares for the user con...
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What is the Windows version of cron? [closed]

...r command-line usage, you can schedule with the AT command. For newer Microsoft OS versions, Windows Server 2012 / Windows 8, look at the schtasks command line utility. If using PowerShell, the Scheduled Tasks Cmdlets in Windows PowerShell are made for scripting. ...
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select * vs select column

If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory? ...
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What does “&” at the end of a linux command mean?

... running through the "&" will also "stay alive" after ssh session is closed! pretty neat and useful if your connection to the server is interrupted** share | improve this answer | ...
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How to detect when an Android app goes to the background and come back to the foreground

... However this approach causes false positives as others pointed out, because these methods are also called when transitioning between activities in the same app. – John Lehmann Feb 6 '13 at 22:41 ...
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Apache: client denied by server configuration

... @MarkHu - can you explain the possible necessity of Satisfy any in this context? I'm asking because I was pulling my hair out here, and adding this it got everything working for me. The odd thing is the app was working with the existing vhost entry until a...