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How to display unique records from a has_many through relationship?
...ock.com/rails/v4.1.8/ActiveRecord/QueryMethods/uniq It occurs in SQL not ruby
– engineerDave
Mar 26 '15 at 21:37
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MySQL - How to select data by string length
...for CHAR_LENGTH() to get the number of characters in a string.
For multi-byte charsets LENGTH() will give you the number of bytes the string occupies, while CHAR_LENGTH() will return the number of characters.
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How do I compare two files using Eclipse? Is there any option provided by Eclipse?
...omparison increases greatly (in my opinion).
– loved.by.Jesus
Sep 23 at 8:52
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Setting Vim whitespace preferences by filetype
....vimrc:
autocmd FileType html setlocal ts=2 sts=2 sw=2
autocmd FileType ruby setlocal ts=2 sts=2 sw=2
autocmd FileType javascript setlocal ts=4 sts=4 sw=4
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C++ performance vs. Java/C#
...Static Compiler
As already said in the previous posts, JIT can compile IL/bytecode into native code at runtime. The cost of that was mentionned, but not to its conclusion:
JIT has one massive problem is that it can't compile everything: JIT compiling takes time, so the JIT will compile only some p...
HintPath vs ReferencePath in Visual Studio
...search order is as follows:
Files from the current project – indicated by ${CandidateAssemblyFiles}.
$(ReferencePath) property that comes from .user/targets file.
%(HintPath) metadata indicated by reference item.
Target framework directory.
Directories found in registry that uses AssemblyFolders...
Possible reason for NGINX 499 error codes
...before the server answered the request. In my experience is usually caused by client side timeout. As I know it's an Nginx specific error code.
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Why is there no Constant feature in Java?
... constants in Java
I have learned that Java allows us to declare constants by using final keyword.
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What is the copy-and-swap idiom?
...g a strong exception guarantee.
How does it work?
Conceptually, it works by using the copy-constructor's functionality to create a local copy of the data, then takes the copied data with a swap function, swapping the old data with the new data. The temporary copy then destructs, taking the old dat...
How to find commits by a specific user in Git? [duplicate]
...I needed to review someone's commits. How can I see a list of commits made by a specific user?
2 Answers
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