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What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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Quick unix command to display specific lines in the middle of a file?
Trying to debug an issue with a server and my only log file is a 20GB log file (with no timestamps even! Why do people use System.out.println() as logging? In production?!)
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log4j configuration via JVM argument(s)?
What variables do I have to set/pass as arguments to the JVM to get log4j to run properly? And by properly I mean not complain and print to the console. Can I see a typical example?
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程序员之网络安全系列（二）：如何安全保存用户密码及哈希算法 - 更多技术 ...
...推出用户密码，Hash结果一致就证明原文一致，我们来用Ruby代码试一下上面的第二点 （MD5是一种常用的Hash算法)
2.2.3 :003 > require 'digest/md5.so'
=> true
2.2.3 :004 > puts Digest::MD5.hexdigest('I love you')
e4f58a805a6e1fd0f6bef58c86f9ceb3
=> nil
2.2.3 ...
Run a string as a command within a Bash script
I have a Bash script that builds a string to run as a command
8 Answers
8
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Import CSV to SQLite
I'm trying to import a csv file to an SQLite table.
10 Answers
10
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What is the 'override' keyword in C++ used for? [duplicate]
I am a beginner in C++. I have come across override keyword used in the header file that I am working on. May I know, what is real use of override , perhaps with an example would be easy to understand.
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Rails ActiveRecord date between
...ou should do this instead:
Comment.where(:created_at => @selected_date.beginning_of_day..@selected_date.end_of_day)
Or, if you want to or have to use pure string conditions, you can do:
Comment.where('created_at BETWEEN ? AND ?', @selected_date.beginning_of_day, @selected_date.end_of_day)
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How to solve PHP error 'Notice: Array to string conversion in…'
...ich will tell you what type it is and what it's content is. Use that for debugging purposes only.
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Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?
...nstantly shaking my head at some of the design decisions of the language. But the thing that really got me puzzled is how arrays are handled.
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