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What is the _snowman param in Ruby on Rails 3 forms for?
... Ruby 1.8, it is extremely trivial to get Latin-1 data into your UTF-8 database (since nothing in the entire stack checks that the bytes that the user sent at any point are valid UTF-8 characters). As a result, it's extremely common for Ruby applications (and PHP applications, etc. etc.) to exhibit ...
get dictionary value by key
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That is not how the TryGetValue works. It returns true or false based on whether the key is found or not, and sets its out parameter to the corresponding value if the key is there.
If you want to check if the key is there or not and do something when it's missing, you need something like...
How to use range-based for() loop with std::map?
The common example for C++11 range-based for() loops is always something simple like this:
5 Answers
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Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to Load an Assembly to AppDomain with all references recursively?
...mainSetup domaininfo = new AppDomainSetup();
domaininfo.ApplicationBase = System.Environment.CurrentDirectory;
Evidence adevidence = AppDomain.CurrentDomain.Evidence;
AppDomain domain = AppDomain.CreateDomain("MyDomain", adevidence, domaininfo);
Type type = typeof(Pr...
The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
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Samuel Neff
64.9k1616 gold badges120120 silver badges163163 bronze badges
answered Oct 15 '08 at 17:47
gimelgimel...
Unique BooleanField value in Django?
...int at very same moment. You still must implement a safer way maybe on database level.
– u.unver34
Dec 30 '18 at 15:09
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Writing your own STL Container
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Easiest way to copy a table from one database to another?
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If you are using PHPMyAdmin, it could be really simple.
Suppose you have following databases:
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Download a file from NodeJS Server using Express
...= __dirname + '/upload-folder/dramaticpenguin.MOV';
var filename = path.basename(file);
var mimetype = mime.lookup(file);
res.setHeader('Content-disposition', 'attachment; filename=' + filename);
res.setHeader('Content-type', mimetype);
var filestream = fs.createReadStream(file);
file...