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Converting an array of objects to ActiveRecord::Relation
...e def self.subjects variety, scopes, etc) on this array. The only way I know to run class methods on a group of objects is to have them be an ActiveRecord::Relation. So I end up resorting to adding a to_indicators method to Array .
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How can I convert a DateTime to the number of seconds since 1970?
...e, there's a really convenient feature:
long unixSeconds = DateTimeOffset.Now.ToUnixTimeSeconds();
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applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. appli
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Revise some descriptions and links, 2019 for now.
– tomjpsun
Sep 20 '19 at 2:56
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Create a submodule repository from a folder and keep its git commit history
... It contains some web demos in a demos folder and one of the demo should now have it's own repository. I would like to create a separate repository for this demo application and make it a subpackage submodule from main repository without losing its commit history.
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What is the fastest way to check if a class has a function defined?
...g decorator called "lru_cache" by Raymond Hettinger. A version of this is now standard in the functools module in Python 3.2.
http://code.activestate.com/recipes/498245-lru-and-lfu-cache-decorators/
http://docs.python.org/release/3.2/library/functools.html
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How do you find out the type of an object (in Swift)?
...es, it's useful to be able to actually find out what type something is. I know the debugger can show you some type information, and you can usually rely on type inference to get away with not specifying the type in those situations, but still, I'd really like to have something like Python's type()
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Where is HttpContent.ReadAsAsync?
....Formatting NuGet package page, the System.Net.Http.Formatting package is now legacy and can instead be found in the Microsoft.AspNet.WebApi.Client package available on NuGet here.
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MySQL: Set user variable from result of query
...ame} and this '{variable_name}', we can replace it with our variable name.
Now, how to assign a value in a variable in mysql. For this we have many ways to do that
Using keyword 'SET'.
Example :-
mysql > SET @a = 1;
Without using keyword 'SET' and using ':='.
Example:-
mysql > @a:=1;
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Correct way of using JQuery-Mobile/Phonegap together?
...en't included using the <script> tag.
– Chris Snow
Feb 21 '15 at 11:05
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Edit a commit message in SourceTree Windows (already pushed to remote)
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"That's it! You're done! " - It's so easy as i don't know what, as a catch a rabbit may be. Instead of creating program feature, for such an important and often seeing situation. When you have just made typo in a hurry, you have to reset head and create new commit again.
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